Entity-relationship approach to information modeling and analysis : proceedings of the Second International Conference on Entity-Relationship Approach, Washington, D.C., October 12-14, 1981 / edited by Peter P. Chen. International Conference on Entity-Relationship Approach (2nd : 1981 : Washington, D.C.) Chen, Peter P. S. ed. Entity-relationship modeling Congresses. QA76.9.D3 I5583 1981 001.64 19 CHE Includes bibliographical references. Amsterdam ; New York : North-Holland, 1983. 1983. 1983 Text xi, 602 p. : eng