Cita APA (7th ed.)

Royse, D. D., Thyer, B. A., & Padgett, D. (2016). Program evaluation: An introduction to an evidence-based approach (Sixth edition.). Cengage Learning.

Cita Chicago (17th ed.)

Royse, David D., Bruce A. Thyer, i Deborah Padgett. Program Evaluation: An Introduction to an Evidence-based Approach. Sixth edition. Boston, MA: Cengage Learning, 2016.

Cita MLA (9th ed.)

Royse, David D., et al. Program Evaluation: An Introduction to an Evidence-based Approach. Sixth edition. Cengage Learning, 2016.