Great Lakes-St. Lawrence Seaway transportation study.
Hearings before a special subcommittee of the Committee on Commerce, United States Senate, Eighty-eighth Congress, first session, in connection with a study of transportation on the Great Lakes-St. Lawrence Seaway.

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Item Link Original Source
Full view   pt.1 University of California
Full view   v.1-2 University of Michigan
Full view   pt.1-3 The Ohio State University
Full view   pt.2 Cornell University