APA (7e ed.) Bronvermelding

Não informado. (1941). Educators guide to free films. Educators Progress League.

Chicago (17e ed.) Bronvermelding

Não informado. Educators Guide to Free Films. Randolph, Wis: Educators Progress League, 1941.

MLA (8e ed.) Bronvermelding

Não informado. Educators Guide to Free Films. Educators Progress League, 1941.

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