APA (7th ed.) Citation

Arnold, E. N., & Ovenden, D. W. (1978). A field guide to the reptiles and amphibians of Britain and Eurore. HarperCollins.

Chicago Style (17th ed.) Citation

Arnold, E. N., and D. W. Ovenden. A Field Guide to the Reptiles and Amphibians of Britain and Eurore. London: HarperCollins, 1978.

MLA (8th ed.) Citation

Arnold, E. N., and D. W. Ovenden. A Field Guide to the Reptiles and Amphibians of Britain and Eurore. HarperCollins, 1978.

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