TY  - BOOK
AU  - Christopherson,Robert W.
TI  - Geosystems: an introduction to physical geography 
SN  - 9780321706225 (hbk.)
PY  - 2012///
CY  - Upper Saddle River, NJ
PB  - Pearson Prentice Hall
KW  - Physical geography
N1  - Includes bibliographical references and index
ER  -