Mansfield, Edwin,  1930- <br/><br/>
The economics of technological change / 
Edwin Mansfield. 
 - 1st ed. 
 - New York :  W. W. Norton,  c1968. 
 - x, 257 p. :  ill. ;  25 cm. 
<br/><br/>Bibliographical footnotes. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technological innovations--United States.<br/>Research, Industrial--United States.
<br/><br/><label>Dewey Class. No.: </label>338.973  / MAE  1968