Howard A <br/><br/>
Soil aeration in agriculture.   
  

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 - Calcutta  Supdt. Govt. Prtg.  1916 
 - 0, 24.5cms, tables, pls. various paging. 
<br/><br/> B   
<br/><br/>  
<br/><br/><label>ISBN: </label>
<br/><br/><label>Dewey Class. No.: </label>631.34 how/soi