Singh, J S. <br/><br/>
Ecology environmental science and conservation / 
By J S Singh, S P Singh and S R Gupta. 
 - 1st Ed. 
 - N.Delhi :  S Chand,  2014. 
 - 929p. ;  00 cm. 
<br/><br/><label>ISBN: </label>9789383746002 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ENVIRONMENTAL SCIENCE.
<br/><br/><label>Dewey Class. No.: </label>363.7  / SIN