TY  - BOOK
AU  - Helliwell, John F
TI  - How much do national borders matter?
SN  - 0-8157-3554-5
U1  - 382.30971073/HEL 
PY  - 1998///
CY  - Washington
PB  - Brookings Institution Pr
KW  - United States--Commerce--Canada
KW  - Canada--Commerce--United States
KW  - United States--Commerce
KW  - Canada--Commerce
KW  - Commerce
ER  -