TY  - BOOK
AU  - Thornbury William D
TI  - Principles of geomorphology
SN  - 0852268858 (pbk)
U1  - H:2, K9;4 
PY  - 1969///
CY  - New Delhi    
PB  -  New Age International (P)Ltd. Pub.    
KW  -  Geomorphology
KW  - Geology
N1  - (Reprinted in 2002)
ER  -