APA aipamena

Cunningham, W. P. (2006). Principles of enviromental science. New York: Margateth J. Kemp.

Chicago Style aipamena

Cunningham, William P. Principles of Enviromental Science. New York: Margateth J. Kemp, 2006.

MLA aipamena

Cunningham, William P. Principles of Enviromental Science. New York: Margateth J. Kemp, 2006.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.