The following bibliography has been generated by bringing together all references provided by our content partners. There may be duplication.

References

• "Offshore/Inshore Fisheries Development" (On-line). Accessed October 5, 1999 at http://www.ifmt.nf.ca/mi-net/fishdeve/grseal.htm.
• "Seal Conservation Society" (On-line). Accessed October 5, 1999 at http://www.greenchannel.com/tec/species/grey.htm.
• * Anderson, R.C. 2000. "Nematode parasites of vertebrates: their development and transmission", CAB International, 672 pages ISBN: 0851994210
• * Encyclopedia of Earth. Authors; Encyclopedia of Life; Peter Saundry. 2011. "Grey seal". Topic ed. C.Michael Hogan. Ed.-in-Chief. Cutler J.Cleveland http://www.eoearth.org/article/Grey_seal .
• 1. IUCN Red List (November, 2008) http://www.iucnredlist.org
• 2. Sea Mammal Research Unit. (2007) Scientific Advice on Matters Related to the Management of Seal Populations. University of St Andrews, Scotland. Available at http://smub.st-and.ac.uk/CurrentResearch.htm/SCOS2007/SCOS_2007_FINAL_ADVICE_1.pdf
• 3. Seal Conservation Society (January, 2002) http://www.pinnipeds.org/species/grey.htm
• 4. Mammal Society fact sheet. (January, 2002) http://www.abdn.ac.uk/mammal/grey_seal.shtml
• 5. Office of Public Sector Information (January, 2008) http://www.hmso.gov.uk/si/si1994/Uksi_19942716_en_9.htm#sdiv3
• 6. King, J.E. (1983) Seals of the World. Oxford University Press, Oxford.
• 7. Morris, P. (2002) Pers. Comm.
• 8. Gotch, A.F. (1979) Mammals, their Latin Names Explained. Blandford Press Ltd, Dorset.
• 9. Westcott, S. (1996) The Grey Seals of the West Country. Stephen Westcott and Cornwall Wildlife Trust, Truro.
• Banks, R. C., R. W. McDiarmid, A. L. Gardner, and W. C. Starnes. 2003. Checklist of Vertebrates of the United States, the U.S. Territories, and Canada
• Banks, R. C., R. W. McDiarmid, and A. L. Gardner. 1987. Checklist of Vertebrates of the United States, the U.S. Territories, and Canada. Resource Publication, no. 166. 79
• Berta, A.; Churchill, M. (2011). Halichoerus grypus (Fabricius, 1791). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=137080 on 2012-05-24
• Borges, P.A.V., Costa, A., Cunha, R., Gabriel, R., Gonçalves, V., Martins, A.F., Melo, I., Parente, M., Raposeiro, P., Rodrigues, P., Santos, R.S., Silva, L., Vieira, P. & Vieira, V. (Eds.) (2010). A list of the terrestrial and marine biota from the Azores. Princípia, Oeiras, 432 pp.
• Cattrijsse, A.; Vincx, M. (2001). Biodiversity of the benthos and the avifauna of the Belgian coastal waters: summary of data collected between 1970 and 1998. Sustainable Management of the North Sea. Federal Office for Scientific, Technical and Cultural Affairs: Brussel, Belgium. 48 pp.
• Costa DP, Robinson PW, Arnould JPY, Harrison A-L, Simmons SE, et al. 2010. Accuracy of ARGOS Locations of Pinnipeds at-Sea Estimated Using Fastloc GPS. PLoS ONE 5(1): e8677. doi:10.1371/journal.pone.0008677
• David Macdonald (1985) The Encyclopedia of Mammals. Facts on File: New York.
• Duck, C., (2002). Pup production in the British Grey seal population. http://smub.st-and.ac.uk/CurrentResearch.htm/scos.htm, 2003-10-07 00:00:00
• Hewer, H. 1974. British Seals. London: Collins.
• Hickling, G. 1962. Grey Seals and the Farne Islands. London: Routledge and Kegan Paul.
• Howson, C.M. & Picton, B.E. (ed.), (1997). The species directory of the marine fauna and flora of the British Isles and surrounding seas. Belfast: Ulster Museum. [Ulster Museum publication, no. 276.]
• JNCC (Joint Nature Conservation Committee), (1999). Marine Environment Resource Mapping And Information Database (MERMAID): Marine Nature Conservation Review Survey Database. [on-line] http://www.jncc.gov.uk/mermaid,
• Jefferson, T.A., Leatherwood, S. & Webber, M.A., (1994). FAO species identification guide. Marine mammals of the world. Rome: United Nations Environment Programme, Food and Agriculture Organization of the United Nations.
• Kedra, M. (2010). A Checklist of marine species occurring in Polish marine waters, compiled in the framework of the PESI EU FP7 project.
• King, J. 1983. Seals of the World. Ithaca, New York: Comstock Publishing Associates.
• Kinze, C. C., (2002). Photographic Guide to the Marine Mammals of the North Atlantic. Oxford: Oxford University Press.
• Koninklijk Belgisch Instituut voor Natuurwetenschappen: Beheerseenheid Mathematisch Model Noordzee en Schelde-estuarium: Oostende
• Lesage, Veronique, Jean-Francois Gosselin, Mike Hammill, Michael C.S. Kingsley, Jack Lawson (2007). Ecologically and Biologically Significant Areas (EBSAs) in the Estuary and Gulf of St. Lawrence - A marine mammal perspective. DFO Can. Sci. Advis. Sec. Res. Doc. 2007/046: 1-96.
• MEDIN (2011). UK checklist of marine species derived from the applications Marine Recorder and UNICORN, version 1.0.  
• Müller, Y. (2004). Faune et flore du littoral du Nord, du Pas-de-Calais et de la Belgique: inventaire. [Coastal fauna and flora of the Nord, Pas-de-Calais and Belgium: inventory]. Commission Régionale de Biologie Région Nord Pas-de-Calais: France. 307 pp.
• NBN (National Biodiversity Network), (2002). National Biodiversity Network gateway. http://www.searchnbn.net, 2008-10-31 00:00:00
• North-West Atlantic Ocean species (NWARMS)
• Original description: Fabricius, 1791.  Skrivter Naturhist.  Selskabet Copenhagen, 1(2):167.
• Ramos, M. (ed.). 2010. IBERFAUNA. The Iberian Fauna Databank
• Rice, Dale W. 1998. Marine Mammals of the World: Systematics and Distribution. Special Publications of the Society for Marine Mammals, no. 4. ix + 231
• Richard Weigl (2005) Longevity of Mammals in Captivity; from the Living Collections of the World. Kleine Senckenberg-Reihe 48: Stuttgart.
• Riedman, M. 1990. The Pinnipeds: Seals, Sea Lions, and Walruses. Oxford: University of California Press.
• Ronald Nowak (2003) Walker's Marine Mammals of the World. Johns Hopkins University Press: Baltimore.
• Stienen, E.W.M.; Van Waeyenberge, J.; Kuijken, E. (2003). Zeezoogdieren in Belgisch mariene wateren [Marine mammals in Belgian marine waters]. Rapport Instituut voor Natuurbehoud, A.2003.152. Instituut voor Natuurbehoud: Brussel, Belgium. 15 pp.
• Tremblay Y, Robinson PW, Costa DP. 2009. A Parsimonious Approach to Modeling Animal Movement Data. PLoS ONE 4(3): e4711. doi:10.1371/journal.pone.0004711
• UNESCO-IOC Register of Marine Organisms
• Wilson, Don E., and DeeAnn M. Reeder, eds. 1993. Mammal Species of the World: A Taxonomic and Geographic Reference, 2nd ed., 3rd printing. xviii + 1207
• Wilson, Don E., and DeeAnn M. Reeder, eds. 2005. Mammal Species of the World: A Taxonomic and Geographic Reference, 3rd ed., vols. 1 & 2. 2142
• Wilson, Don E., and F. Russell Cole. 2000. Common Names of Mammals of the World. xiv + 204
• Zakharov, V., A. Yablokov. 1990. Skull Asymmetry in the Baltic Grey Seal: Effects of Environmental Pollution. Ambio, 19: 266-269.
• van der Land, J. (2001). Tetrapoda, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 375-376