TY  - BOOK
AU  - Thoman,Richard S.
AU  - Conkling,Edgar C.
AU  - Yeates,Maurice H.
TI  - The geography of economic activity
U1  - 330.9 
PY  - 1968///
CY  - New York
PB  - McGraw-Hill
KW  - Economic geography
N1  - Includes index
ER  -