TY  - BOOK
AU  - Platt, Robert S.
TI  - Field study in american geography: the development of theory and method exemplified by selections
PY  - 1959///
CY  - Chicago
PB  - University of Chicago
KW  - AGRICULTURA
KW  - ESTADOS UNIDOS
KW  - GEOGRAFIA
KW  - GEOGRAFIA POLITICA
KW  - MAPAS
KW  - RIOS
ER  -