TY  - BOOK
AU  - Brush,John E.
AU  - Gauthier,Howard L.
TI  - Service centers and consumer trips: studies on the Philadelphia metropolitan fringe 
PY  - 1968///
CY  - University of Chicago, Chicago
PB  - Dept. of Geography
KW  - Retail trade
KW  - Pennsylvania
KW  - Philadelphia Metropolitan Area
KW  - Origin and destination traffic surveys
N1  - Bibliographical footnotes
ER  -