Dyfyniad APA

Punch, K. (2005). Introduction to social research: Quantitative and qualitative approaches (2nd ed.). Sage.

Dyfyniad Arddull Chicago

Punch, Keith. Introduction to Social Research: Quantitative and Qualitative Approaches. 2nd ed. London: Sage, 2005.

Dyfyniad MLA

Punch, Keith. Introduction to Social Research: Quantitative and Qualitative Approaches. 2nd ed. Sage, 2005.

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