TY  - BOOK
AU  - Christopherson Robert  W 
AU  - Birkeland Ginger H 
TI  - Geosystems 
SN  - 9780134597119
PY  - 2018///
CY  - New York
PB  - Pearson 
KW  - An  Introduction To Physical Geography
KW  - geosystems, physical, geography, christopherson, robert, ginger, birkeland
ER  -