Marvey F Ludwing <br/><br/>
MANUAL OF environmental technology in developing c 

 - New Delhi   South Asian Publishers India        1991 
 -  V1 .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geography - Environment
<br/><br/><label>Dewey Class. No.: </label>U:(G:55).1(X).N9, N1.1-N1.2