APA aipamena

(1983). Environmental Systems/henry J. Cowan. Van Nostrand Reinhold.

Chicago Style aipamena

Environmental Systems/henry J. Cowan. Van Nostrand Reinhold, 1983.

MLA aipamena

Environmental Systems/henry J. Cowan. Van Nostrand Reinhold, 1983.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.