Mansfield, Edwin <br/><br/>
Technological change :  An introduction to a vital area of modern economics / 
Ed. Mansfield. 
 - New York :  W.W. Norton & Company., Inc.,  1971. 
 - 165 p. ;  21 cm. 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics<br/>Public policy--Technological change