Birren, James E. The psychology of aging / [By] James E. Birren. - Englewood Cliffs, N.J. : Prentice-Hall, [1964]. - ix, 303 p. : ill. ; 24 cm. Includes bibliogr. references. Subjects--Topical Terms: Aging.Developmental psychology.Older people--Psychology. Dewey Class. No.: 136.53