Kerlinger Fred N. (1973). Foundations of behavioral research (2 ed.). Holt, Rinehart.
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Dyfyniad Arddull Chicago
Kerlinger Fred N. Foundations of Behavioral Research. 2 ed. New York: Holt, Rinehart, 1973.
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Dyfyniad MLA
Kerlinger Fred N. Foundations of Behavioral Research. 2 ed. Holt, Rinehart, 1973.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.