Helliwell, John F.
How much do national borders matter? /
John F. Helliwell.
- Washington, D.C. : Brookings Institution, 1998
- 155 p. : ill. ; 23 cm.
0815735545 RM140.57
Interstate commerce--Canada.
Interstate commerce--United States.
Boundaries.
Canada--Commerce.
United States--Commerce.
Canada--Commerce--United States.
United States--Commerce--Canada.