Implications of tractorisation for farm employment, productivity and income 

 - New Delhi  NCAER  1980 
 - 2161p. 
<br/><br/> volume.II 
<br/><br/><label>Subjects--Index Terms: </label>tractorisation 
<br/><br/><label>Dewey Class. No.: </label>631.1  / NAT