TY  - BOOK
AU  - Christopherson,Robert W..
TI  - Elemental geosystems / 
SN  - 9780137435357
U1  - 910.02 
PY  - 1998///
CY  - New Jersey : 
PB  - Prentice Hall , 
KW  - PHYSICAL GEOGRAPHY
N1  - Include glossary and index
ER  -