1. (2001). Chaos of disciplines. Chicago: University of Chicago Press.
2. (1998). Geologic ethics and professional practices 1987-1997. Arvada, CO: American Institute of Professional Geologists.
3. and (2000). Accounting education: Charting the course through a perilous future.
4. Retrieved January 16, 2003, from http://www.aicpa.org.
5. and (2004). Entering the mainstream: The quality and extent of online education in the United States, 2003 and 2004. Boston: Sloan Consortium.