Environmental Studies 
Environmental Studies 
 -  "xx, 262 p.: chart,; 24 cm.; pbk. " 
 - Chennai  MJP Publishers  2012 
<br/><br/><label>ISBN: </label>9788180941054 
<br/><br/><label>Dewey Class. No.: </label>333.707 IGN  / 22.333.707 IGN