APA aipamena

Turk, A. (1974). Environmental science. Philadelphia: Saunders.

Chicago Style aipamena

Turk, Amos. Environmental Science. Philadelphia: Saunders, 1974.

MLA aipamena

Turk, Amos. Environmental Science. Philadelphia: Saunders, 1974.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.