Pawan Kumar Bharti <br/><br/>
Environmental health and problems 

 - New Delhi  Discovery publishing house  2013 
<br/><br/><label>ISBN: </label>9789350562635 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental health
<br/><br/><label>Dewey Class. No.: </label>628  / BHA.E