Introduction to computers and information systems / Robert A. Szymanski ... [et al.]. - 2nd ed. - New York : Toronto : New York : Macmillan ; Collier Macmillan ; M. Macmillan International, c1991. - xxix, 768 p. : ill. (chiefly col.) ; 26 cm. Gift Includes index. ISBN: 0029464269 Subjects--Topical Terms: Computers.Electronic data processing.