Phillips, J. J. (1991). Handbook of training evaluation and measurement methods (2nd ed.). Gulf Pub. Co.
Chicago-referens (17:e uppl.)Phillips, Jack J. Handbook of Training Evaluation and Measurement Methods. 2nd ed. Houston: Gulf Pub. Co, 1991.
MLA-referens (8:e uppl.)Phillips, Jack J. Handbook of Training Evaluation and Measurement Methods. 2nd ed. Gulf Pub. Co, 1991.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.