Bornmar,C.H. <br/><br/>
Information systems. 

 - ed. 
 - Pretoria :  university of south africa,  1978. 
 - 162  p. ;    cm. 
<br/><br/>index. 
<br/><br/><label>ISBN: </label> $ 
<br/><br/><label>Subjects--Topical Terms: </label><br/>information systems.