APA aipamena

Brewer, R. (1979). Principles of ecology. WB saunders co.

Chicago Style aipamena

Brewer, Richard. Principles of Ecology. WB saunders co, 1979.

MLA aipamena

Brewer, Richard. Principles of Ecology. WB saunders co, 1979.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.