Soil survey manual 

 - OXFORD & IBH  New Delhi  1966 
 - 503P.  fig., table, chart, ill. 
<br/><br/><label>Nat. Bib. No.: </label>6097 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Universal Decimal Class. No.: </label>631.47  / SOI