Simpson, Alan <br/><br/>
Computing for the professions 

 - Purley  Input two-nine  1978 
 - 130 p. 
<br/><br/>   
<br/><br/><label>Subjects--Index Terms: </label>Calculating devices  Computer Science  Computer security 
<br/><br/><label>Universal Decimal Class. No.: </label>004  / SIM