APA (7th ed.) Citation

Couzens, D., & Cottridge, D. (2005). Collins birds: A complete guide to all British and European species. Collins.

Chicago Style (17th ed.) Citation

Couzens, Dominic, and David Cottridge. Collins Birds: A Complete Guide to All British and European Species. London: Collins, 2005.

MLA (9th ed.) Citation

Couzens, Dominic, and David Cottridge. Collins Birds: A Complete Guide to All British and European Species. Collins, 2005.

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