Gray, J. S. (1954). Psychology applied to human affairs (2nd edition.). McGraw-Hill.
Chicago Style (17. basım) AtıfGray, John Stanley. Psychology Applied to Human Affairs. 2nd edition. New York: McGraw-Hill, 1954.
MLA (9th ed.) AtıfGray, John Stanley. Psychology Applied to Human Affairs. 2nd edition. McGraw-Hill, 1954.
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