Purohit, S.S. <br/><br/>
A Textbook of Environmental Sciences:  As per unified UGC Syllabus 
S.S. Purohit, Q. J. Shammi and A.K. A grawal 
 - 394p.,  ill. 
<br/><br/> Environmental Science 
<br/><br/><label>ISBN: </label>8188826146 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Renewable and non renewable resources
<br/><br/><label>LC Class. No.: </label>GE140 PUR 2004