APA (7th ed.) Citation

Arnold, E. N., Burton, J. A., & Ovenden, D. (1992). A field guide to the reptiles and amphibians of Britain and Europe. Collins.

Chicago Style (17th ed.) Citation

Arnold, Edwin Nicholas, John A. Burton, and Denys Ovenden. A Field Guide to the Reptiles and Amphibians of Britain and Europe. London: Collins, 1992.

MLA (9th ed.) Citation

Arnold, Edwin Nicholas, et al. A Field Guide to the Reptiles and Amphibians of Britain and Europe. Collins, 1992.