TY  - BOOK
AU  - Thornbury, William D.Thornbury,
TI  - Principles of Geomorphology
SN  - 81-239-0811-3
U1  - 551.4 
CY  - New Delhi
PB  - CBS Publishers & Distributors
KW  - Principles of Geomorphology
KW  - G - Earth Sc -Geology
ER  -