Basu, S. K. <br/><br/>
Questions and answers in environmental science / 
S K Basu, A K De 
 - New Delhi, India :  Universities Press,  2005 
 - 381 p. ;  18 cm. 
<br/><br/><label>ISBN: </label>8173715475 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental sciences