Singh, R. K. <br/><br/>
Handbook of environmental studies/ by R. K. Singh 

 - Varanasi  Wisdom Books  2008 
 - 249 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sociology
<br/><br/><label>Dewey Class. No.: </label>363.7SIN-H