Gaya APA

KIRKPATRICK, D, L., KIRPATRICK, J, D. (2006). Evaluating training programs (3rd ed.). California: Barrett-Koehler.

Gaya MLA

KIRKPATRICK, Donald, L.., KIRPATRICK, James, D.. "Evaluating training programs". 3rd ed. California: Barrett-Koehler, 2006. Text.