Não informado. (1940). Main Currents in Modern Thought. Center for Integrated Education.
Style de citation Chicago (17e éd.)Não informado. Main Currents in Modern Thought. New York: Center for Integrated Education, 1940.
Style de citation MLA (8e éd.)Não informado. Main Currents in Modern Thought. Center for Integrated Education, 1940.
Attention : ces citations peuvent ne pas être correctes à 100%.