Callahan, John. J. <br/><br/>
Needed    Professional management in Data processing. 
John. J Callahan 
 - New Jerseys   Prentice-Hall   inc 
<br/><br/><label>ISBN: </label>013610956x 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic Data Processing Departments-Management
<br/><br/><label>LC Class. No.: </label>HF 5548.2  .C34