Crowley, Thomas H. <br/><br/>
Understanding computers / 
Thomas H. Crowley. 
 - New York :  McGraw-Hill,  c1967. 
 - ix, 142 p. 
<br/><br/><label>LCCN: </label>67-14891 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers.<br/>Computer science.