[Committee hearings] serial, 88th Congress. 21. Participation by counties in refuge receipts, hearings before Subcommittee on Fisheries and Wildlife Conservation, 88th Congress, 2d session, on H.R. 1127, H.R. 2393, H.R. 5996, H.R. 9030, H.R. 11008, Apr. 22 and 23, 1964.