APA način citiranja

Enger, E. D., & Smith, B. F. (1998). Environmental Science: A Study of Interrelationships. Boston: McGraw-Hill.

Čikaški stil citiranja

Enger, Eldon D., i Bradley F. Smith. Environmental Science: A Study of Interrelationships. Boston: McGraw-Hill, 1998.

MLA način citiranja

Enger, Eldon D., i Bradley F. Smith. Environmental Science: A Study of Interrelationships. Boston: McGraw-Hill, 1998.