TY  - GEN
AU  - Gabler, R.E.
AU  - Sager, R.J.
AU  - Wise, D.L.
TI  - Essentials of Physical Geography
PY  - 1990///
CY  - Philadelphia
PB  - Saunders College Publ.
KW  - GEOGRAFIA FISICA
KW  - IM
ER  -