Dyfyniad APA

Hakim, C. (2000). Research design: Successful designs for social and economic research (2nd ed.). Routledge.

Dyfyniad Arddull Chicago

Hakim, Catherine. Research Design: Successful Designs for Social and Economic Research. 2nd ed. London: Routledge, 2000.

Dyfyniad MLA

Hakim, Catherine. Research Design: Successful Designs for Social and Economic Research. 2nd ed. Routledge, 2000.

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