APA (7th ed.) Citation

British Museum (Natural History). Department of Zoology & Boulenger, G. A. Catalogue of the chelonians, rhynchocephalians, and crocodiles in the British Museum (Natural History) (New ed.).

Chicago Style (17th ed.) Citation

British Museum (Natural History). Department of Zoology and George Albert Boulenger. Catalogue of the Chelonians, Rhynchocephalians, and Crocodiles in the British Museum (Natural History). New ed.

MLA (9th ed.) Citation

British Museum (Natural History). Department of Zoology and George Albert Boulenger. Catalogue of the Chelonians, Rhynchocephalians, and Crocodiles in the British Museum (Natural History). New ed.