APA (7e ed.) Bronvermelding

Não informado. (1968). Educational Marketer. Simba - Communication Trends.

Chicago (17e ed.) Bronvermelding

Não informado. Educational Marketer. Wilton, Conn: Simba - Communication Trends, 1968.

MLA (8e ed.) Bronvermelding

Não informado. Educational Marketer. Simba - Communication Trends, 1968.

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