Boon, G. K. <br/><br/>
Economic choice of human and physical factors in production; an attempt to measure the micro-economic and macro-economic possibilities of variation in factor proportions of production   

 - Amsterdam  North-Holland  1964 
 - xviii, 332p. 
<br/><br/>  
<br/><br/><label>Dewey Class. No.: </label>338.012  / B724.EC