APA (7th ed.) Citation

Unwin, Whittley, & Lockwood. (2006). My first book of garden birds. A & C Black.

Chicago Style (17th ed.) Citation

Unwin, Whittley, and Lockwood. My First Book of Garden Birds. London: A & C Black, 2006.

MLA (8th ed.) Citation

Unwin, et al. My First Book of Garden Birds. A & C Black, 2006.