Dyfyniad APA

Sylvia, R. D., & Sylvia, K. M. (2012). Program planning and evaluation for the public manager (4th ed.). Waveland Press.

Dyfyniad Arddull Chicago

Sylvia, Ronald D., and Kathleen M. Sylvia. Program Planning and Evaluation for the Public Manager. 4th ed. Long Grove, Ill.: Waveland Press, 2012.

Dyfyniad MLA

Sylvia, Ronald D., and Kathleen M. Sylvia. Program Planning and Evaluation for the Public Manager. 4th ed. Waveland Press, 2012.

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