APA (7th ed.) Citation

Richdale, L. E. (1951). Sexual behavior in penguins. University of Kansas Press.

Chicago Style (17th ed.) Citation

Richdale, L. E. Sexual Behavior in Penguins. Lawrence: University of Kansas Press, 1951.

MLA (9th ed.) Citation

Richdale, L. E. Sexual Behavior in Penguins. University of Kansas Press, 1951.

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