United States. Congress. Senate. Special Committee on Aging & ProQuest (Firm). How old is "old"?: The effects of aging on learning and working : hearing before the Special Committee on Aging, United States Senate, Ninety-sixth Congress, second session, Washington, D.C., April 30, 1980.
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Special Committee on Aging and ProQuest (Firm). How Old Is "Old"?: The Effects of Aging on Learning and Working : Hearing Before the Special Committee on Aging, United States Senate, Ninety-sixth Congress, Second Session, Washington, D.C., April 30, 1980.
MLA (9th ed.) CitationUnited States. Congress. Senate. Special Committee on Aging and ProQuest (Firm). How Old Is "Old"?: The Effects of Aging on Learning and Working : Hearing Before the Special Committee on Aging, United States Senate, Ninety-sixth Congress, Second Session, Washington, D.C., April 30, 1980.