APA aipamena

Farb, P. (1970). Ecology. Time-Life Books.

Chicago Style aipamena

Farb, Peter. Ecology. New York: Time-Life Books, 1970.

MLA aipamena

Farb, Peter. Ecology. Time-Life Books, 1970.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.