Modern Farming and the Soil 

 - Her Majesty's Stationery Office  London  1970 
 - 119P.  ILL.,Cht.,Fig and Table 
<br/><br/><label>Nat. Bib. No.: </label>4477 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Universal Decimal Class. No.: </label>631.45  / MOD