Kerlinger, F. N. (1964). Foundations of behavioral research: Educational and psychological inquiry. Holt, Rinehart and Winston.
Chicago-referens (17:e uppl.)Kerlinger, Frederick Nichols. Foundations of Behavioral Research: Educational and Psychological Inquiry. New York: Holt, Rinehart and Winston, 1964.
MLA-referens (9:e uppl.)Kerlinger, Frederick Nichols. Foundations of Behavioral Research: Educational and Psychological Inquiry. Holt, Rinehart and Winston, 1964.
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