TY  - BOOK
AU  - Christopherson,Robert W.
TI  - Elemental geosystems
SN  - 9780132698566 (pbk.)
U1  - 910.02 
PY  - 2013///
CY  - Boston, MA
PB  - Pearson
KW  - Physical geography
N1  - Includes index
ER  -