Goldstein, I. L., & Ford, J. K. (2002). Training in organizations: Needs assessment, development, and evaluation (Fourth edition.). Wadsworth.

Goldstein, Irwin L., and J. Kevin Ford. Training in Organizations: Needs Assessment, Development, and Evaluation. Fourth edition. Belmont, CA: Wadsworth, 2002.

Goldstein, Irwin L., and J. Kevin Ford. Training in Organizations: Needs Assessment, Development, and Evaluation. Fourth edition. Wadsworth, 2002.