Soil biology 

 - Hisar:   Haryana Agricultural University,   1986 
 - 275p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Soil Science
<br/><br/><label>Subjects--Index Terms: </label>Micro environment  Soil productivity 
<br/><br/><label>Universal Decimal Class. No.: </label>631.4(082.2)   / M6