APA način citiranja (7. izdanje)
Enger, E. D., & Smith, B. F. (1992). Environmental science: A study of interrelationships (4th ed.). W.C. Brown.
Čikaški stil citiranja (17. izdanje)
Enger, Eldon D., i Bradley Fraser Smith. Environmental Science: A Study of Interrelationships. 4th ed. Dubuque, IA: W.C. Brown, 1992.
MLA način citiranja (9. izdanje)
Enger, Eldon D., i Bradley Fraser Smith. Environmental Science: A Study of Interrelationships. 4th ed. W.C. Brown, 1992.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.