Kirkpatrick, D. L., & Kirkpatrick, J. D. (2006). Evaluating training programs: The four levels (3rd ed.). San Francisco: Berrett - Koehler Publishers, Inc.
Chicago Style CitationKirkpatrick, Donald L., and James D. Kirkpatrick. Evaluating Training Programs: The Four Levels. 3rd ed. San Francisco: Berrett - Koehler Publishers, Inc, 2006.
MLA CitationKirkpatrick, Donald L., and James D. Kirkpatrick. Evaluating Training Programs: The Four Levels. 3rd ed. San Francisco: Berrett - Koehler Publishers, Inc, 2006.
Warning: These citations may not always be 100% accurate.