Hellwig, Jessica. <br/><br/>
Introduction to computers and programming 
by Jessica Hellwig. 
 - New York  Columbia University Press  1969. 
 - 215 p.  illus. 
<br/><br/> 921009 
<br/><br/><label>LCCN: </label>71085919  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic digital computers