TY  - BOOK
AU  - Wallen,Robert N.
TI  - Introduction to physical geography
SN  - 0697151514
U1  - 910.02 
PY  - 1992///
CY  - Dubuque, IA
PB  - Wm.C. Brown Publishers
KW  - Physical geography
KW  - Atmosphere; Biosphere; Lithosphere; Hydrosphere; Earth's system
N2  - Environment Management
ER  -