APA (7th ed.) Citation

Ashton, C., & Ashton, M. (2008). The domestic duck. The Crowood Press.

Chicago Style (17th ed.) Citation

Ashton, Chris, and Mike Ashton. The Domestic Duck. Ramsbury: The Crowood Press, 2008.

MLA (9th ed.) Citation

Ashton, Chris, and Mike Ashton. The Domestic Duck. The Crowood Press, 2008.

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