Mansfield, Edwin <br/><br/>
The economics of technological change / 
Edwin Mansfield  
 - London :      Longmans ,  1969 
 - x, 257p. ;  20 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technology and development <br/>Industrial research<br/>Technological change<br/>Research and development
<br/><br/><label>Dewey Class. No.: </label>338.88  / MAN