Citazione APA

Kirkpatrick, D. L., & Kirkpatrick, J. D. (2006). Evaluating training programs: The four levels (3rd.ed.). Tata McGraw-Hill.

Stile di citazione Chicago

Kirkpatrick, Donald L., e James D. Kirkpatrick. Evaluating Training Programs: The Four Levels. 3rd.ed. New Delhi: Tata McGraw-Hill, 2006.

Citazione MLA

Kirkpatrick, Donald L., e James D. Kirkpatrick. Evaluating Training Programs: The Four Levels. 3rd.ed. Tata McGraw-Hill, 2006.