APA (7th ed.) Citation

Woodward, F. (1993). Shells: The illustrated identifier to over 140 species. Apple Press.

Chicago Style (17th ed.) Citation

Woodward, Fred. Shells: The Illustrated Identifier to over 140 Species. London: Apple Press, 1993.

MLA (9th ed.) Citation

Woodward, Fred. Shells: The Illustrated Identifier to over 140 Species. Apple Press, 1993.