APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (8e ed.) Bronvermelding

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