Mansfield, Edwin <br/><br/>
Industrial research and technological innovation:  an econometric analysis / 
Edwin Mansfield 
 - New York :  W. W. Norton & Company,  1968. 
 - 235 p. ;  23 cm 
<br/><br/><label>ISBN: </label>0393097242 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Modelos matemáticos<br/>Administração
<br/><br/><label>Dewey Class. No.: </label>658.4033