TY  - BOOK
AU  - Thornbury , William D
TI  - Principles of geomorphology
SN  - 0 85226 885 8
U1  - 551.4 
PY  - 1997///
CY  - New Delhi
PB  - New Age International LTD.
KW  - Geology
KW  - Geomorphology
N1  - Includes index
ER  -