523,603 INTERNATIONAL 9th International Congress of Gerontology. July 2-7, 1972. Kiev U.S.S.R. The vol. is compiled under the auspicies of D.F. Chebotarev, V.V. Proles, A.Ya. Mints. Kiev 1972 /druk. :J. Kniznaja Tipografija 8° Vol. 1. Plenary and section sessions. Reports and introductory lectures condensations of papers, s. 298, nlb. 1.