TY  - BOOK
AU  - Thornbury, William D
TI  - Principles of geomorphology
SN  - 9789386649935
U1  - 910.155141 K9;Q9;6 
PY  - 2019///
CY  - New Delhi
PB  - New Age International
KW  - Geomorphology
KW  - Title
ER  -