Dictionary of Environmental Sciences / 
editors, Chavvi Bharal, Darshna Singh. 
 - New Delhi :  A.I.T.B.S. Publishers & Distributors,  2006 
 - , 542 p. :  ill.   21.5 cm. 
<br/><br/><label>ISBN: </label>9.79817E+12 
<br/><br/><label>National Library of Medicine Call No.: </label>WA 671  / .D53 2006