Introduction to Computer and Information Systems 
Robert A. Szymanski...,[et. al.] 
 - Columbus  Merrill Publishing  1988 
 - xxxi, 577p.  ill.  25 cm 
<br/><br/><label>ISBN: </label>0675207681 
<br/><br/><label>LCCN: </label>8761715 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers--Informatiopn Systems