Dyfyniad APA

Evaluation Research Society, Cook, T. D., & Reichardt, C. S. (1979). Qualitative and quantitative methods in evaluation research. Sage Publications.

Dyfyniad Arddull Chicago

Evaluation Research Society, Thomas D. Cook, and Charles S. Reichardt. Qualitative and Quantitative Methods in Evaluation Research. Beverly Hills, Calif: Sage Publications, 1979.

Dyfyniad MLA

Evaluation Research Society, et al. Qualitative and Quantitative Methods in Evaluation Research. Sage Publications, 1979.

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