%0 Journal Article %T A Retesting and Modification of the Philadelphia Geriatric Center Morale Scale %A Morris, John, N. %A Sherwood,, Sylvia %J Journal of Gerontology %V 30 %N 1 %P 77-84 %@ 0022-1422 %D 1975-01-01 %I Oxford Academic %~ DeepDyve