O'Leary, Timothy J. <br/><br/>
Computing essentials :  Annual Edition 1991-1992 / 
Timothy J. O'Leary. 
 - New York :  McGraw-Hill,  c1991. 
 - 248 p. :  ill. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0070488029 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer science.
<br/><br/><label>LC Class. No.: </label>QA76  / .O44