APA (7th ed.) Citation

Mertens, D. M., & Wilson, A. T. (2012). Program evaluation theory and practice: A comprehensive guide. Guilford Press.

Chicago Style (17th ed.) Citation

Mertens, Donna M., and Amy T. Wilson. Program Evaluation Theory and Practice: A Comprehensive Guide. New York: Guilford Press, 2012.

MLA (9th ed.) Citation

Mertens, Donna M., and Amy T. Wilson. Program Evaluation Theory and Practice: A Comprehensive Guide. Guilford Press, 2012.