Mansfield, Edwin. <br/><br/>
Industrial research and technological innovation :  An econometric analysis / 
Ed. Mansfield. 
 - New York :  W.W. Norton & Company., Inc.,  1968. 
 - xviii, 235 p. :  illus. ;  24 cm. 
<br/><br/> "Published for the Cowles Foundation for Research in Economics at Yale University."  Companion to the author's The economics of technological change 
<br/><br/>Bibliography: p. 222-230 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technological innovations--United States<br/>Research, Industrial--United States<br/>Econometrics