Dyfyniad APA

VAUS D A DE. (2003). SURVEYS IN SOCIAL RESEARCH (5TH.). RAWAT PUBLICATIONS.

Dyfyniad Arddull Chicago

VAUS D A DE. SURVEYS IN SOCIAL RESEARCH. 5TH. NEW DELHI: RAWAT PUBLICATIONS, 2003.

Dyfyniad MLA

VAUS D A DE. SURVEYS IN SOCIAL RESEARCH. 5TH. RAWAT PUBLICATIONS, 2003.

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