Lua APA (7ú heag.)

Bulmer, M. (1984). Sociological research methods (2nd ed.). Transaction Books.

Lua i Stíl Chicago (17ú heag.)

Bulmer, Martin. Sociological Research Methods. 2nd ed. New Brunswick: Transaction Books, 1984.

Lua MLA (9ú heag.)

Bulmer, Martin. Sociological Research Methods. 2nd ed. Transaction Books, 1984.

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