Dumping of Waste Material: Hearings Before the Subcommittee on Fisheries and Wildlife Conservation..91-2, on H.R. 15827, 25828, 25829, 16299, 17603, 17843, 17879, 18043, 18454, 18592, 18593, 18621, 18641, 18796, July 27, 28, Sept. 30, 1970
United States. Congress. House. Merchant Marine and Fisheries