TY  - BOOK
AU  - STRAHLER Arthur N
AU  -  STRAHLER Alan H
TI  - Elements of physical geography
T2  - Cambridge Studies in Comparative Politics
U1  - U2, L9;M9 
PY  - 1989///
CY  - New York
PB  - John Wiley        
N1  - Bibliography: p 179-188
ER  -