Transfer of bridge administration program and alerting and locating radio beacons requirement : hearing before the Subcommittee on Coast Guard and Navigation of the Committee on Merchant Marine and Fisheries, House of Representatives, One Hundredth Congress, second session on H.R. 4557 ... and H.R. 4558 ... August 3, 1988. (U.S. G.P.O. :, 1988)