TY  - BOOK
AU  - Christopherson,Robert W.
TI  - Elemental geosystems
SN  - 0130168009
AV  - GB54.5.C47 2001 .C47 2001
PY  - 2001///
CY  - Upper Saddle River, NJ
PB  - Prentice Hall
KW  - Physical geography
N1  - Includes bibliographical references and index
ER  -