Mandell, Steven L., <br/><br/>
Principles of data processing 
Steven L. Mandell. 
 - 3rd ed 
 - St. Paul  West Pub. Co.  1984 
 - 172pages:    illustration;    25cm 
<br/><br/>Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic data processing