Vessel traffic control :
hearings before the Subcommittee on Coast Guard and Navigation of the Committee on Merchant Marine and Fisheries, House of Representatives, Ninety-fourth Congress, on vessel traffic control ... Coast Guard activities in the upper Great Lakes ...
|Corporate Author:||United States.|
Washington : U.S. Govt. Print. Off., 1976.
> Coast Guard.
Navigation > Great Lakes (North America) > Safety measures.
Electronics in navigation.
Navigation > United States > Safety measures.
"Serial no. 94-39."
Hearings held in various cities, June 26, 1975-Sept. 22, 1976.
v, 392 p. :
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