Date, C. J. An introduction to data base systems / C. J. Date. - 6th ed. - New York : Addison-wesley, c1995. - xxiii, 839 pages : illustrations ; 24 cm. - Addison-wesley systems programming series. . Includes index. ISBN: 020154329X Subjects--Topical Terms: Database management. Dewey Class. No.: 005.74 DAT