Caption
United States Essential Foreign Trade Routes – U.S. Atlantic Ports
Summary
Shows Major Trade Routes (and Seaports) between U.S. Atlantic, Gulf and Pacific Ports, and East Coast South America. Imprint: Prepared by Division of Management Office of Budget and Management.
Source
Essential United States Foreign Trade Routes (p. 7)
U.S. Department of Commerce, Maritime Administration, 1963.
Copyright
Public Domain