TY  - BOOK
AU  - Thornbury,William D.
TI  - Principles of Geomerphology 
SN  - 8123908113
U1  - 551.4  
PY  - 2004///
CY  - New Delhi
PB  - CBS Publishers
KW  - Backgrounds of Geomorphology
KW  - Some Fundemental Concepts
ER  -