KIRKPATRICK. (1998). Evaluating training programs: The four levels. Berrett-Koehler Pubs.
Chicago Style (17th ed.) CitationKIRKPATRICK. Evaluating Training Programs: The Four Levels. San Francisco: Berrett-Koehler Pubs, 1998.
MLA (9th ed.) CitationKIRKPATRICK. Evaluating Training Programs: The Four Levels. Berrett-Koehler Pubs, 1998.
Warning: These citations may not always be 100% accurate.