TY  - BOOK
AU  - Thornbury,William D.
TI  - Principles of geomorphology
SN  - 0852268661
U1  - 551.41 22
PY  - 1969///, 1990
CY  - New York
PB  - Wiley Eastern Limited
KW  - Geomorphology
N1  - Includes bibliographical references & index
ER  -