Yearbook of science and technology 1970 
/ McGraw Hill Book Company 
 - New York:     McGraw-Hill Book Company,   1970 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science
<br/><br/><label>Subjects--Index Terms: </label>technology  
<br/><br/><label>Universal Decimal Class. No.: </label>R 5/6 (058)