https://catalogue-scientifique.canada.ca/record=1179298~S6*frc
Rechercher Estonia. Ministry of Health; Rechercher Estonia. Tervishoiu Ministeerium; Rechercher Estonia. Ministerstvo zdravookhraneni︠i︡a
Ministerstvo zdravookhraneni︠i︡a Ėstonskoĭ SSR, 1974
Actes de conférence