Kohnke, H. Bertrand, A. R. <br/><br/>
Soil Conservation 

 - Mcgraw-HILL  BOOK COMPANY  London  1959 
 - 298p.  fig., table, chart, ill. 
<br/><br/><label>Nat. Bib. No.: </label>2052 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Universal Decimal Class. No.: </label>631.45  / KOH