Cohen, L., & Manion, L. (1985). Research methods in education (2nd ed.). Croom Helm.
Chicago Style (17th ed.) CitationCohen, Louis, and Lawrence Manion. Research Methods in Education. 2nd ed. London: Croom Helm, 1985.
MLA citiranjeCohen, Louis, and Lawrence Manion. Research Methods in Education. 2nd ed. Croom Helm, 1985.
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