Purohit, S.S <br/><br/>
A textbook of environmental science 

 - Jodhpur  Student Edition  2004 
 - 397 p. 
<br/><br/><label>ISBN: </label>8188826146 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental science<br/>Natural resources
<br/><br/><label>Dewey Class. No.: </label>333.7  / PUR