Dyfyniad APA

Dooley, D. (2003). Social research methods (3rd ed.). Pearson Education.

Dyfyniad Arddull Chicago

Dooley, David. Social Research Methods. 3rd ed. New Delhi: Pearson Education, 2003.

Dyfyniad MLA

Dooley, David. Social Research Methods. 3rd ed. Pearson Education, 2003.

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