TY  - BOOK
T1  - Elemental geosystems a foundation in physical geography
A1  - Christopherson, Robert W.
LA  - English
PP  - Upper Saddle River, N.J.
PB  - Prentice Hall
YR  - 1995
UL  - https://tuklas.up.edu.ph/Record/UP-8027390931312306753
CN  - GB54.5 C47 1995
KW  - Physical geography.
ER  -