Não informado. (1940). Main Currents in Modern Thought. Center for Integrated Education.
Chicagoスタイル(17版)引用形式Não informado. Main Currents in Modern Thought. New York: Center for Integrated Education, 1940.
MLA(8版)引用形式Não informado. Main Currents in Modern Thought. Center for Integrated Education, 1940.
警告: この引用は必ずしも正確ではありません.