APA (7th ed.) Zitazioa

ebrary, Inc, & Lockeretz, W. (2007). Organic farming: An international history. CABI.

Chicago Style (17th ed.) Zitazioa

ebrary, Inc, eta William Lockeretz. Organic Farming: An International History. Cambridge, MA: CABI, 2007.

MLA (9th ed.) Zitazioa

ebrary, Inc, eta William Lockeretz. Organic Farming: An International History. CABI, 2007.