Proceedings of Workshop on Data Abstraction, Databases, and Conceptual Modelling, Pingree Park, Colorado, June 23-26, 1980
Workshop on Data Abstraction, Databases, and Conceptual Modelling (1980 Pingree Park, Colo.) Michael L Brodie; Stephen N Zilles; United States National Bureau of Standards
New York, N.Y. Association for Computing Machinery Baltimore, MD May be ordered from ACM Order Dept. c1980