APA (7th ed.) Citation

Gerking, S. D. (1969). Biological sytems. W.B. Saunders.

Chicago Style (17th ed.) Citation

Gerking, Shelby D. Biological Sytems. W.B. Saunders, 1969.

MLA (8th ed.) Citation

Gerking, Shelby D. Biological Sytems. W.B. Saunders, 1969.

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