Aging around the world. Proceedings of the Fifth Congress of the International Association of Gerontology [1960.]
International Association of Gerontology.
Tibbitts, Clark.
Donahue, Wilma.
Kaplan, Jerome.
Aldridge, Gordon J.
Shock, Nathan W.
New York & London, 
1962.
Social and psychological aspects of aging. Edited by Clark Tibbitts and Wilma Donahue. Social welfare of the aging. Edited by Jerome Kaplan and Gordon J. Aldridge. Biological aspects of aging. Edited by Nathan W. Shock.