APA način citiranja

Enger, E. D. (1997). Environmental science: A study of interrelationships. Boston, Massachusetts: WCB/McGraw-Hill.

Čikaški stil citiranja

Enger, Eldon D. Environmental Science: A Study of Interrelationships. Boston, Massachusetts: WCB/McGraw-Hill, 1997.

MLA način citiranja

Enger, Eldon D. Environmental Science: A Study of Interrelationships. Boston, Massachusetts: WCB/McGraw-Hill, 1997.

Upozorenje: Ovi citati možda nisu uvijek 100% točni.