APA (7e ed.) Bronvermelding

SANDERS, H. e. (1966). Cooperative extension service. Prentice -Hall.

Chicago (17e ed.) Bronvermelding

SANDERS, H.C. ed. Cooperative Extension Service. New Jersey: Prentice -Hall, 1966.

MLA (9e ed.) Bronvermelding

SANDERS, H.C. ed. Cooperative Extension Service. Prentice -Hall, 1966.