Awad, Elias M Business Data processing - 5th ed. - Englewood Cliffs, N.J. : Prentice-Hall 1980 - xxii, 552p. : ill. ISBN: 0130938076 Subjects--Topical Terms: BUSINESSBUSINESS--DATA PROCESSINGPunched card systems LC Class. No.: HF 5548.2 Awa