TY  - BOOK
AU  - Thornbury,William D.
TI  - Principles of geomorphology
SN  - 0852268661
U1  - 551.4 22
PY  - 1993///
CY  - New delhi
PB  - Wiley Eastern
KW  - Geomorphology
N1  - Includes bibliographical references and index
ER  -