APA (7e ed.) Bronvermelding

Não informado. (1937). Agricultural Education. American Vocational Association, Agricultural Section.

Chicago (17e ed.) Bronvermelding

Não informado. Agricultural Education. Des Moines, Iowa: American Vocational Association, Agricultural Section, 1937.

MLA (8e ed.) Bronvermelding

Não informado. Agricultural Education. American Vocational Association, Agricultural Section, 1937.

Let op: Deze citaties zijn niet altijd 100% accuraat.