Liability in collisions between vessels. : Hearings before the Merchant Marine and Fisheries Subcommittee of the Committee on Commerce, United States Senate, Eighty-seventh Congress, second session, on S. 2313, to unify apportionment of liability in cases of collision between vessels, and related casualties; and S. 2314, to limit the liability of shipowners, and for other purposes / (U.S. Govt. Print. Off, 1962)