1. (1962) “A New Approach to the Information Function in Marketing,” unpublished Ph. D. dissertation, Department of Commerce, University of Wisconsin, Madison, WI.
2. (1964) “Horizontal Information Flow: An Exploratory Study,” Journal of Academy of Management, March.
3. et al. (1959) Competitive Intelligence, Watertown, MA-C. I. Associates. Also included in “Competitive Intelligence: Information Espionage and Decision Making,” a special report to management by students at the Harvard Business School, Watertown, MA: C. I. Associates.
4. (1986) “The Right Way to Snoop on Competition,” Sales and Marketing Management, May.