Cita APA (7a ed.)

Kirkpatrick, D. L. (1994). Evaluating training programs: The four levels. Berrett-Koehler.

Cita Chicago Style (17a ed.)

Kirkpatrick, Donald L. Evaluating Training Programs: The Four Levels. San Francisco: Berrett-Koehler, 1994.

Cita MLA (9a ed.)

Kirkpatrick, Donald L. Evaluating Training Programs: The Four Levels. Berrett-Koehler, 1994.