Awad, Elias M. Automatic data processing: principles and procedures / [by] Elias M. Awad [and] Data Processing Management Association. - 3d ed. - Englewood Cliffs, N.J. : Prentice-Hall, 1973 - x, 566 p. : illus. ; 24 cm. Includes index ISBN: 0130547182 Subjects--Topical Terms: Business--Data processing. Dewey Class. No.: 651.8 / AWA 1973