Date, C. J. An introduction to database systems [Book] / C.J. Date. - 7th ed. - Reading, Mass. : Addison-Wesley Pub. Co., c1995. - xxiii, 839 p. : ill. ; 24 cm. - Addison-Wesley systems programming series . All. ISBN: 020154329X Subjects--Topical Terms: Database management. Dewey Class. No.: 005.74