Gertman, Samuel. 1915-1968. Wake up younger! : How to make the most of your later years / by Samuel Gertman and Helen Alpert. - [1st ed.] - New York : Citadel Press , 1961. - 256 p. : illus. 21 cm. LCCN: 61012922 Subjects--Topical Terms: Older people. LC Class. No.: HQ1061 / .G43 Dewey Class. No.: 305.26 / GEW 1961