Blanchard, P. N., & Thacker, J. W. (2007). Effective training: Systems, strategies, and practices (3rd ed.). Pearson Prentice Hall.

Blanchard, P. Nick, and James W. Thacker. Effective Training: Systems, Strategies, and Practices. 3rd ed. Upper Saddle River, N.J. ; New Delhi: Pearson Prentice Hall, 2007.

Blanchard, P. Nick, and James W. Thacker. Effective Training: Systems, Strategies, and Practices. 3rd ed. Pearson Prentice Hall, 2007.