Bhargava, Gopal  . <br/><br/>
Environmental challenges and ecological disaster /  
by Gopal Bhargava. 
 - New Delhi :   Mittal Publications ,   1992 
 - xii,247p ;  
<br/><br/><label>ISBN: </label>81-7099-395-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology- Ecological disaster
<br/><br/><label>Dewey Class. No.: </label>G:55.1  / N2;1