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

References

  • B. Segui. 2001. A new species of Pica (Aves: Corvidae) from the Plio-Pleistocene of Mallorca, Balearic Islands (Western Mediterranean). Geobios 34(3):339-347
  • Frost, Darrel R. 1997. Amphibian Species of the World, A Taxonomic and Geographic Reference. Second edition

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