Singh J S <br/><br/>
Ecology environment and resource conservation 
by Singh J S; Singh S P; Gupta S R 
 - New Delhi   Anamaya Publisher       2006 
 - xxvii, 688p.  cm. 
<br/><br/> References 643-678p.; Index 679-688p. 
<br/><br/><label>ISBN: </label>8188342556 (pbk) 
<br/><br/><label>Standard No.: </label>95791 
<br/><br/><label>Source: </label> 316, 26/02/2010, N R Book Distributors  Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>General science
<br/><br/><label>Dewey Class. No.: </label>G:5, P6;8-;10