Patterson, S. H., & Scholz, K. W. H. (1931). Economic problems of modern life (4th ed.). McGraw-Hill Book Company.
Chicago Style (17. basım) AtıfPatterson, Samuel Howard, ve Karl William Henry Scholz. Economic Problems of Modern Life. 4th ed. New York: McGraw-Hill Book Company, 1931.
MLA (9th ed.) AtıfPatterson, Samuel Howard, ve Karl William Henry Scholz. Economic Problems of Modern Life. 4th ed. McGraw-Hill Book Company, 1931.
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