1. , , & (2001). Redefining human resource development: An integration of the learning, performance, and spirituality of work perspectives. In (Ed.), Academy of Human Resource Development 2001 Conference Proceedings (pp. 205–212). Bowling Green, OH: Academy of Human Resource Development.
2. (1996). Professionalization comes from theory and research: The why instead of the how-to. In (Ed.), Workplace learning: Debating five critical questions of theory and practice (pp. 51–56). San Francisco: Jossey-Bass.
3. & (1983). Up the HRD ladder. Reading, MA: Addison-Wesley.
4. Human resource development as an interdisciplinary body of knowledge