Spencer, Donald D.
Data processing: an introduction
Charles E. Merrill, 1982
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Elliott, C. Orville
Introduction to data processing
Richard D. Irwin, 1970
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Thierauf, Robert J.
An introduction to data processing for business
John Wiley & Sons, 1980
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Langenbach, Robert G.
Introduction to automated data processing
Prentice-Hall, 1968
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Thierauf, Robert J.
An introduction to data processing for business
John Wiley , 1980
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