The rate and direction of inventive activity, economic and social factors  a conference of the Universities-National Bureau Committee for Economic Research and the Committee on Economic Growth of the Social Science Research Council. 

 - New York  Arno Press  1962. 
 - 635 p.  ill. 
 - National Bureau of Economic Research publications in reprint .
 - National Bureau of Economic Research.  Special conference series  13. .
<br/><br/> Reprint of the ed. published by Princeton University Press, Princeton, as v. 13 of the Special Conference series of the National Bureau of Economic Research. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0405075839 
<br/><br/><label>LCCN: </label>evn00000224 //r85 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Inventions--Congresses.
<br/><br/><label>LC Class. No.: </label>HD69.I75  / U52 1962 
<br/><br/><label>Dewey Class. No.: </label>330.1