1. Congestion at Card and Book Catalogs: A Queuing-Theory Approach
2. Models for Shelf Reading
3. “Waiting Line Theory Applied to Manufacturing Problems,” in and (eds.), Homewood, Illinois: Richard D. Erwin, 278 (1958).
4. Economic Models for Industrial Waiting Line Problems
5. Statistical Theory and Methodology in Science and Engineering, New York: John Wiley & Sons, 225 (1965).