1. Food Marketing Institute speaks 1998,1998
2. Revolution at the checkout counter: the explosion of the bar code;Brown,1997
3. Introduction;Dunlop,1997
4. Hearings before the Subcommittee for Consumers of the Committee on Commerce, United States Senate, 93 Cong. 2d. Sess., Symposium on the Universal Product Coding System, December 11, 1974:1–78.
5. Harvard Business School Case, 9-676-087. Grocery industry in the U.S.A.: choice of a universal product code,1975