Heertje, Arnold <br/><br/>
Economics and technical change 
by Arnold Heertje 
 - London  Weidenfeld and Nicolson  1977 
 - 334p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technological innocations<br/>Economic development
<br/><br/><label>Dewey Class. No.: </label>T19 H361