Date, C. J. An introduction to database systems / C. J. Date. - 2nd ed. - Addison-Wesley Pub. Co., c1977. - xxiii, 536 p. : ill. ; 25 cm. - The Systems programming series . Includes bibliographical references and index. ISBN: 0201144565 LCCN: 76055633 Subjects--Topical Terms: Database management. Subjects--Index Terms: ინფორმატიკა მონაცემთა ბაზების მართვა LC Class. No.: QA76.9.D3 / D37 1977 Dewey Class. No.: 001.6/4 Universal Decimal Class. No.: 681.3.06