9th international congress of gerontology, July 2-7, 1972, Kiev, USSR = 9ый Международный конгресс геронтологов = 9eme congres international de gerontologie = 9te internationaler kongress fur gerontologie / comp. by D. F. Chebotarev, V. V. Frolkis, A. Ya Mints. - [S.l., 1972]. - 21 cm.см.. - Text Engl.[MFN: 21734]