APA (7th ed.) Citation

Davis, P. (1990). The World of biology (4th ed.). Saunders College Publishing.

Chicago Style (17th ed.) Citation

Davis, P.William. The World of Biology. 4th ed. Philadelphia: Saunders College Publishing, 1990.

MLA (9th ed.) Citation

Davis, P.William. The World of Biology. 4th ed. Saunders College Publishing, 1990.

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