Dyfyniad APA

Cook,Thomas D, & Reichardt,Charles S. (1979). Qualitative and quantitative methods in evaluation research. Sage.

Dyfyniad Arddull Chicago

Cook,Thomas D, and Reichardt,Charles S. Qualitative and Quantitative Methods in Evaluation Research. London: Sage, 1979.

Dyfyniad MLA

Cook,Thomas D, and Reichardt,Charles S. Qualitative and Quantitative Methods in Evaluation Research. Sage, 1979.

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