Kart, Cary S. 1946- The realities of aging : : an introduction to gerontology / [electronic resource] / Cary S. Kart, contributing authors, Eileen Metress, Seamus P. Metress.. — 2nd ed.. — Boston : : Allyn and Bacon,, c1985.. — x, 518 p. : : ill. ; 25 cm.