Powell, K. F. Monsma, J. E. <br/><br/>
An executive's guide to computer concepts 

 - First 
 - Pitman  United Kingdom  1969 
 - 166p. 
<br/><br/><label>Nat. Bib. No.: </label>3248 
<br/><br/><label>Universal Decimal Class. No.: </label>004.6  / MON