Surendra Kumar Yadav <br/><br/>
Soil Ecology 
Surendra Kumar Yadav 
 - New Delhi  Aph Publishing Corporation  2007 
 - viii, 194 p. 
<br/><br/><label>ISBN: </label>9788131301906 
<br/><br/><label>Dewey Class. No.: </label>577.57  / SUR