Salter,W.E.G <br/><br/>
Productivity and technical change 

 - 2nd ed. 
 - London  Cambridge U.P.  1969 
 - 220 p. 
 - University of Cambridge Department of Applied Economics monographs .
<br/><br/><label>ISBN: </label>521095689 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ECONOMICS
<br/><br/><label>Dewey Class. No.: </label>338.6  / SAL