Citazione APA

California Farm Bureau Federation & Contra Costa County Farm Bureau (Calif.). (1924). Contra Costa County farm bureau monthly. Contra Costa County Farm Bureau.

Stile di citazione Chicago

California Farm Bureau Federation e Contra Costa County Farm Bureau (Calif.). Contra Costa County Farm Bureau Monthly. Hayward, Calif.: Contra Costa County Farm Bureau, 1924.

Citazione MLA

California Farm Bureau Federation e Contra Costa County Farm Bureau (Calif.). Contra Costa County Farm Bureau Monthly. Contra Costa County Farm Bureau, 1924.