Festinger, L., & Katz, D. (1953). Research methods in the behavioral sciences. New York: Holt, Rinehart and Winston.
Παραπομπή Chicago StyleFestinger, Leon, and Daniel Katz. Research Methods in the Behavioral Sciences. New York: Holt, Rinehart and Winston, 1953.
Παραπομπή MLAFestinger, Leon, and Daniel Katz. Research Methods in the Behavioral Sciences. New York: Holt, Rinehart and Winston, 1953.
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