1. GORDON W. ALLPORT , " Attitudes," in Carl Murchison , ed., A Handbook of Social Psychology, pp. 810-810, 814-814. Worcester, Mass., Clark University Press , 1935.
2.
2. EMORY S. BOGARDUS , " Social distance and its diagnosis,"Journal of Applied Psychology, 1925, 9, pp. 216-226 ; and " Measuring social distances," Journal of Applied Psychology, 1925, 9, pp. 299-308. See also EMORY S. BOGARDUS, " A social distance scale," Sociology and Social Research, 1933, 17, pp. 265-271.
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3. G. W. ELLIS , " The psychology of American race prejudice,"Journal of Race Development, 1915, 5, p. 299-299 .
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4. DANIEL KATZ and RICHARD L. SCHANCK , Social Psychology, pp. 86-87. New York, John Wiley and Sons , 1938.
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5. RONALD LIPPITT and MARIAN RADKE , "New trends in the investigation of prejudice,"Annals of the American Academy of Political and Social Science, 1946, 244, pp. 167-176 .
6.
6. JOSIAH MORSE , " The psychology of prejudice,"International Journal of Ethics, 1907, 17, p. 498-498 .
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7. J. A. H. MURRAY , ed., A New English Dictionary on Historical Principles, Vol. VII, Part II, s.v. " Prejudice."Oxford, Clarendon Press , 1909.
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8. W. F. OGBURN , " Bias, psychoanalysis, and the subjective in relation to the social sciences,"Publications of the American Sociological Society, 1922, 17, pp. 62-63 .
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9. J. W. M. ROTHNEY , " A note on a psychological factor in the teaching of controversial issues,"Harvard Teachers Record, 1936, 6, pp. 169-170 .
10.
10. WILLIAM I. THOMAS , "The psychology of race prejudice,"American Journal of Sociology, 1904, 9, pp. 610-611 .
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11. GOODWIN B. WATSON , The Measurement of Fair-Mindedness, Teachers College Contributions to Education No. 176, p. 8-8. New York, Columbia University Press , 1925.