AU  - Thornbury,William D..
TI  - Principles of Geomorphology / 
SN  - 0-85226-866-1
U1  - 550.1 
PY  - 1969///
CY  - New Delhi-110002
PB  - Wiley Eastern Limited , 
KW  - Geography
N1  - Rs.90/-; NULL
ER  -