TY  - BOOK
AU  - Thornbury, William. D.
TI  - Principles of geomorphology
U1  - 551.4 
PY  - 1969///
CY  - New York
PB  - John Wiley
KW  - Karst Topography
KW  - Stream Deposition
KW  - Paleogeomorphology
ER  -