APA aipamena

Sawvel, P. J. (2008). Water resource management. Greenhaven Press.

Chicago Style aipamena

Sawvel, Patty Jo. Water Resource Management. Detroit: Greenhaven Press, 2008.

MLA aipamena

Sawvel, Patty Jo. Water Resource Management. Greenhaven Press, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.