Christensen, L. B. (1980). Experimental methodology (2d ed.). Boston: Allyn and Bacon.
Trích dẫn kiểu ChicagoChristensen, Larry B. Experimental Methodology. 2d ed. Boston: Allyn and Bacon, 1980.
MLA CitationChristensen, Larry B. Experimental Methodology. 2d ed. Boston: Allyn and Bacon, 1980.
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