(1964). Foundations of behavioural research (2nd ed.). Holt, Rinehart and Winston.
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Chicago-čujuhus (17. p.)
Foundations of Behavioural Research. 2nd ed. New York: Holt, Rinehart and Winston, 1964.
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MLA-čujuhus (9. p.)
Foundations of Behavioural Research. 2nd ed. Holt, Rinehart and Winston, 1964.
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