TIFFEN MARY <br/><br/>
MORE PEOPLE,LESS EROSION 

 - NEW YORK  1994 
<br/><br/><label>ISBN: </label>0-471-94143-3 
<br/><br/><label>LC Class. No.: </label>333.7616096762/TIF  / 1 
<br/><br/><label>Dewey Class. No.: </label>333.7616096762/TIF  / 1