APA Citation
Kirkpatrick, D. L., & Kirkpatrick, J. D. (2007). Implementing the four levels: A practical guide for effective evaluation of training programs. San Francisco: Berrett-Koehler Publishers.
Chicago Style CitationKirkpatrick, Donald L., and James D. Kirkpatrick. Implementing the Four Levels: A Practical Guide for Effective Evaluation of Training Programs. San Francisco: Berrett-Koehler Publishers, 2007.
MLA CitationKirkpatrick, Donald L., and James D. Kirkpatrick. Implementing the Four Levels: A Practical Guide for Effective Evaluation of Training Programs. San Francisco: Berrett-Koehler Publishers, 2007.
Warning: These citations may not always be 100% accurate.