APA aipamena

(1984). Organic farming: Current technology and its role in a sustainable agriculture. Madison, USA: American Society of Agronomy.

Chicago Style aipamena

Organic Farming: Current Technology and Its Role in a Sustainable Agriculture. Madison, USA: American Society of Agronomy, 1984.

MLA aipamena

Organic Farming: Current Technology and Its Role in a Sustainable Agriculture. Madison, USA: American Society of Agronomy, 1984.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.