Environment and natural resources  

 - Muzaffarnagar:   Society of Biosciences,   1990 
 - 155p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environment 
<br/><br/><label>Subjects--Index Terms: </label>Natural resources  
<br/><br/><label>Universal Decimal Class. No.: </label>502.65:581.52  / N0