Dyfyniad APA
Mertens, D. M., & Wilson, A. T. (2012). Program evaluation theory and practice: A comprehensive guide. Guilford Press.
Dyfyniad Arddull Chicago
Mertens, Donna M., and Amy T. Wilson. Program Evaluation Theory and Practice: A Comprehensive Guide. New York, N.Y.: Guilford Press, 2012.
Dyfyniad MLA
Mertens, Donna M., and Amy T. Wilson. Program Evaluation Theory and Practice: A Comprehensive Guide. Guilford Press, 2012.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.