Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (8ú heag.)

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

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