APA (7e ed.) Bronvermelding

Não informado. (1956). Educational Screen and Audio-visual Guide. Educational Screen.

Chicago (17e ed.) Bronvermelding

Não informado. Educational Screen and Audio-visual Guide. Chicago, Ill: Educational Screen, 1956.

MLA (8e ed.) Bronvermelding

Não informado. Educational Screen and Audio-visual Guide. Educational Screen, 1956.

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