APA (7th ed.) Citation

Waddell, M., & Oxenbury, H. (1991). Farmer duck. Walker Books.

Chicago Style (17th ed.) Citation

Waddell, Martin, and Helen Oxenbury. Farmer Duck. London: Walker Books, 1991.

MLA (9th ed.) Citation

Waddell, Martin, and Helen Oxenbury. Farmer Duck. Walker Books, 1991.

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