LAL J.B <br/><br/>
ENVIRONMENTAL CONSERVATION 

 - DEHARADUN  DHANAPAT RAI & SONS-1  1987 
 - 111 
<br/><br/><label>Subjects--Topical Terms: </label><br/>"Environmental engineering,Sanitary and Muncipal Engg,Impact assessment"
<br/><br/><label>Dewey Class. No.: </label>628