Dyfyniad APA

Posavac, E. J., & Carey, R. G. (1980). Program Evaluation. Prentice-Hall of India.

Dyfyniad Arddull Chicago

Posavac, Emil J., and Reymond G. Carey. Program Evaluation. New Jersey: Prentice-Hall of India, 1980.

Dyfyniad MLA

Posavac, Emil J., and Reymond G. Carey. Program Evaluation. Prentice-Hall of India, 1980.

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