APA (7e ed.) Bronvermelding

Não informado. (1940). Main Currents in Modern Thought. Center for Integrated Education.

Chicago (17e ed.) Bronvermelding

Não informado. Main Currents in Modern Thought. New York: Center for Integrated Education, 1940.

MLA (8e ed.) Bronvermelding

Não informado. Main Currents in Modern Thought. Center for Integrated Education, 1940.

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