Dwivedi, Padmanabh <br/><br/>
Environmental pollution and environmental management / 
by Padmanabh Dwivedi 
 - 1st ed. 
 - New Pali Road, Jodhpur:  Pawan Kumar Sharma,  2004. 
 - vii, 138p. 
<br/><br/><label>ISBN: </label>8172333587 
<br/><br/><label>Dewey Class. No.: </label>D854  / P4