APA (7th ed.) Citation

Lynch, J. D. (2011). A Taxonomic Revision of the Leptodactylid Frog Genus Syrrhophus Cope. Project Gutenberg.

Chicago Style (17th ed.) Citation

Lynch, John D. A Taxonomic Revision of the Leptodactylid Frog Genus Syrrhophus Cope. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Lynch, John D. A Taxonomic Revision of the Leptodactylid Frog Genus Syrrhophus Cope. Project Gutenberg, 2011.

Warning: These citations may not always be 100% accurate.