Dyfyniad APA

Greener, I., & Greve, B. (2014). Evidence and evaluation in social policy. Wiley-Blackwell.

Dyfyniad Arddull Chicago

Greener, Ian, and Bent Greve. Evidence and Evaluation in Social Policy. Malden, Massachusetts: Wiley-Blackwell, 2014.

Dyfyniad MLA

Greener, Ian, and Bent Greve. Evidence and Evaluation in Social Policy. Wiley-Blackwell, 2014.

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