International Business Machines Corporation
Introduction to IBM data processing systems - 3rd ed. - New York : International Business Machines Corporation, 1969 - 106 p.
OFFICE MANAGEMENT
IBM PERSONNAL COMPUTER--PROGRAMMING
QA76.8 .I2594 / I573I 1969
Introduction to IBM data processing systems - 3rd ed. - New York : International Business Machines Corporation, 1969 - 106 p.
OFFICE MANAGEMENT
IBM PERSONNAL COMPUTER--PROGRAMMING
QA76.8 .I2594 / I573I 1969