Dyfyniad APA

Payne, G., & Payne, J. (2004). Key concepts in social research. SAGE.

Dyfyniad Arddull Chicago

Payne, Geoff, and Judy Payne. Key Concepts in Social Research. London: SAGE, 2004.

Dyfyniad MLA

Payne, Geoff, and Judy Payne. Key Concepts in Social Research. SAGE, 2004.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.