TY  - BOOK
AU  - Thornbury, William D. (William David), 1900-
TI  - Principles of geomorphology
SN  - 9788123908113
U1  - 551.4/THO/P 
PY  - 2004///
CY  - New Delhi
PB  - CBS Publishers & Distributors Pvt. Ltd.
KW  - Geography
KW  - Geomorphology	
KW  - Geology, Structural
KW  - Physical geography
ER  -