Principles of Data Processing:  Concepts, Applications and Cases/  English. 
Ralph M. Stair, JR. 
 - America:  Richard D. Irwin, Inc,  1981. 
 - xvii, 474p.:  ill.;  24cm. 
<br/><br/><label>ISBN: </label>0256024847 
<br/><br/><label>Dewey Class. No.: </label>004.01  / STA