TY  - BOOK
AU  - Christopherson, Robert W. 
TI  - Elemental geosystems
SN  - 9780132698566   Pbk., Bp.
AV  - GB 54.5 C57 2013 CIRC 
PY  - 2013///
CY  - Boston
PB  - Pearson, 
KW  - Physical geography
N1  - Includes index
ER  -