APA (7th ed.) Zitazioa

Cunningham, W. P. (2005). Environmental science: A global concern. McGraw-Hill.

Chicago Style (17th ed.) Zitazioa

Cunningham, William P. Environmental Science: A Global Concern. Boston: McGraw-Hill, 2005.

MLA (9th ed.) Zitazioa

Cunningham, William P. Environmental Science: A Global Concern. McGraw-Hill, 2005.