Dyfyniad APA

Bulmer, M. (1977). Sociological Research Methods: An Introduction. The Macmillan Press.

Dyfyniad Arddull Chicago

Bulmer, Martin. Sociological Research Methods: An Introduction. London: The Macmillan Press, 1977.

Dyfyniad MLA

Bulmer, Martin. Sociological Research Methods: An Introduction. The Macmillan Press, 1977.

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