TY  - BOOK
AU  - Platt,Robert S.
TI  - Field study in American geography: the development of theory and method exemplified by selections 
T2  - University of Chicago. Dept. of Geography. Research paper
U1  - 910.7 
PY  - 1959///
CY  - Chicago
KW  - Geography
KW  - Study and teaching
KW  - United States
ER  -