Schaffer, Cullen, 1960- <br/><br/>
Principles of computer science / 
by Cullen Schaffer. 
 - Englewood Cliffs, N.J. :  Prentice-Hall,  1988. 
 - xvii, 413 p.  : ill. ;  25 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0137100965 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers.<br/>Electronic data processing.