United States. Congress. Senate. Special Committee on Aging. Subcommittee on Consumer Interests of the Elderly & ProQuest (Firm). (1968). Hearing Loss, Hearing Aids, and the Elderly: Hearings before the United States Senate Special Committee on Aging, Subcommittee on Consumer Interests of the Elderly, Ninetieth Congress, second session, on July 18, 19, 1968. U.S. G.P.O..
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Special Committee on Aging. Subcommittee on Consumer Interests of the Elderly and ProQuest (Firm). Hearing Loss, Hearing Aids, and the Elderly: Hearings Before the United States Senate Special Committee on Aging, Subcommittee on Consumer Interests of the Elderly, Ninetieth Congress, Second Session, on July 18, 19, 1968. Washington: U.S. G.P.O., 1968.
MLA (9th ed.) CitationUnited States. Congress. Senate. Special Committee on Aging. Subcommittee on Consumer Interests of the Elderly and ProQuest (Firm). Hearing Loss, Hearing Aids, and the Elderly: Hearings Before the United States Senate Special Committee on Aging, Subcommittee on Consumer Interests of the Elderly, Ninetieth Congress, Second Session, on July 18, 19, 1968. U.S. G.P.O., 1968.