APA (7th ed.) Zitazioa

Bunce, A. C. (1945). The economics of soil conservation. The Iowa States College.

Chicago Style (17th ed.) Zitazioa

Bunce, Arthur C. The Economics of Soil Conservation. Ames: The Iowa States College, 1945.

MLA (9th ed.) Zitazioa

Bunce, Arthur C. The Economics of Soil Conservation. The Iowa States College, 1945.