Introduction to computers and information systems / 
Robert  A. Szymanski ... [et al.]. 
 - Columbus, Ohio  :  Merrill Pub. Co.,  c1988. 
 - xxxi, 577 p. :  ill. (chiefly col.) ;  26 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0675207681 
<br/><br/><label>LCCN: </label>87061715  
<br/><br/><label>LC Class. No.: </label>QA76 .I64 1988  / .I64 1988 
<br/><br/><label>Dewey Class. No.: </label>004