Ohkawa Kazushi <br/><br/>
International comparisons of productivity in agric 

 - National Research Institute of Agriculture, Bulletin. I .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture Industry
<br/><br/><label>Dewey Class. No.: </label>X9(J):2.1.N5, H9