Kirkpatrick, D. L. c. (1975). Evaluating training programs. American Society for Training and Development.
Chicago-Zitierstil (17. Ausg.)Kirkpatrick, Donald L. comp. Evaluating Training Programs. Madison, Wis: American Society for Training and Development, 1975.
MLA-Zitierstil (9. Ausg.)Kirkpatrick, Donald L. comp. Evaluating Training Programs. American Society for Training and Development, 1975.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.