TY  - BOOK
AU  - Christopherson,Robert W.
TI  - Geosystems: an introduction to physical geography 
SN  - 9780136005988
AV  - GB54.5 .C48 2009
U1  - 910/.02 22
PY  - 2009///
CY  - Upper Saddle River, N.J.
PB  - Pearson/Prentice Hall
KW  - Physical geography
N1  - Includes bibliographical references and index
ER  -