APA aipamena

Cunningham, W. P. (2003). Environmental science: A global concern. Boston: McGraw-Hill.

Chicago Style aipamena

Cunningham, William P. Environmental Science: A Global Concern. Boston: McGraw-Hill, 2003.

MLA aipamena

Cunningham, William P. Environmental Science: A Global Concern. Boston: McGraw-Hill, 2003.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.