Puri, A N <br/><br/>
Soil science 

 - Simla:  Minerva Book Shop, 
 - 156p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Subjects--Index Terms: </label>Calcium soils  Soil erosion 
<br/><br/><label>Universal Decimal Class. No.: </label>631.4(022)   / J1