(1962). The social studies and the social sciences. New York: Harcourt, Brace & World.
Trích dẫn kiểu ChicagoThe Social Studies and the Social Sciences. New York: Harcourt, Brace & World, 1962.
MLA CitationThe Social Studies and the Social Sciences. New York: Harcourt, Brace & World, 1962.
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