TY  - BOOK
AU  - Thornbury,William D.
TI  - Principles of geomorphology
SN  - 0471861979 ; 8123908113
AV  - GB55 .T49 1969
U1  - 551.4 23
PY  - 2004///
CY  - New Delhi
PB  - CBS Publishers & Distributors
KW  - Geomorphology
N1  - Includes bibliographies; CE
ER  -