Dudal S Ed. <br/><br/>
Dark clay soils of tropical and subtropical region 

 - Rome  Food and Agriculture Organization         1965 
 - x, 161p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil Industry
<br/><br/><label>Dewey Class. No.: </label>X9(J:1:7).192.N6, K5/UN