Dyfyniad APA

Cohen,Louis, & Manion,Lawrence. (2000). Research methods in education (5.). Routledge.

Dyfyniad Arddull Chicago

Cohen,Louis, and Manion,Lawrence. Research Methods in Education. 5. London: Routledge, 2000.

Dyfyniad MLA

Cohen,Louis, and Manion,Lawrence. Research Methods in Education. 5. Routledge, 2000.

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