1. (1978). Human competence: Engineering worthy performance. New York: McGraw-Hill Book Company.
2. (2000). Mega planning. Thousand Oaks, CA: Sage Publishing.
3. & (2003). Assessing or evaluating: Determining which approach is required. In & (eds.), The 2003 team and organizational development sourcebook. New York: McGraw-Hill.
4. Assessing and evaluating: Differentiating perspectives
5. & (1995). Planning and conducting needs assessments. Thousand Oaks, CA: Sage Publishing.