Cummings Jeffrey L 1948 Dementia, a clinical approach / Jeffrey L. Cummings, D. Frank Benson. - Boston : Butterworths, c1983. - ix, 416 p. : ill. ; 25 cm. Includes index. Bibliography: p. 315-406. ISBN: 0409950440 Subjects--Topical Terms: Dementia LC Class. No.: WM 220 Dewey Class. No.: 616.89