एपीए उद्धरण

Enger, E. D. (1997). Concepts in biology. Dubuque, Iowa: Wm. C. Brown Publishers.

शिकागो स्टाइल उद्धरण

Enger, Eldon D. Concepts in Biology. Dubuque, Iowa: Wm. C. Brown Publishers, 1997.

एमएलए उद्धरण

Enger, Eldon D. Concepts in Biology. Dubuque, Iowa: Wm. C. Brown Publishers, 1997.