Lua APA (7ú heag.)

Vaus, D. D. (2003). Surveys in Social Research (5th.). Rawat Publication.

Lua i Stíl Chicago (17ú heag.)

Vaus, D.A DE. Surveys in Social Research. 5th. Jaipur: Rawat Publication, 2003.

Lua MLA (9ú heag.)

Vaus, D.A DE. Surveys in Social Research. 5th. Rawat Publication, 2003.

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