Dyfyniad APA

Bryman, A. (2016). Social research methods (5th edition.). Oxford University Press.

Dyfyniad Arddull Chicago

Bryman, Alan. Social Research Methods. 5th edition. New York: Oxford University Press, 2016.

Dyfyniad MLA

Bryman, Alan. Social Research Methods. 5th edition. Oxford University Press, 2016.

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