TY  - BOOK
AU  - Thornbury,William D.
TI  - Principles of geomorphology
U1  - 551.4 
PY  - 1954///
CY  - New YorkU.S.A.
PB  - John Wiley
KW  - Geomorfologia
N1  - BIBLIOTECA: UACH-FING
ER  -