Leon, A. <br/><br/>
Introduction to computers / 
Alexis Leon and Mathews Leon. 
 - Manila, Philippines:  Rex Book Store,  c2004. 
 - various pages.;   24 cm. 
<br/><br/> Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>971-23-3886-x 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers.
<br/><br/><label>Dewey Class. No.: </label>GC 004 L579 2004  / 5981