APA ציטוט

John W Spaven. (1960). Campaigns in agricultural extension programs; N.3. Michigan: National Project in Agricultural Communication.

Trích dẫn kiểu Chicago

John W Spaven. Campaigns in Agricultural Extension Programs; N.3. Michigan: National Project in Agricultural Communication, 1960.

ציטוט MLA

John W Spaven. Campaigns in Agricultural Extension Programs; N.3. Michigan: National Project in Agricultural Communication, 1960.