Vsesoi︠u︡znai︠a︡ nauchno-tekhnicheskai︠a︡ konferent︠s︡ii︠a︡ po primenenii︠u︡ radioaktivnykh i stabilʹnykh izitopov i izlucheniĭ v narodnom khozi︠a︡ĭstve i nauke (2nd : 1957 : Moscow)
Department of International Economic and Social Affairs, Statistical Office, and Centre for Social Development and Humanitarian Affairs, United Nations
prepared by a Joint Working Party of the Scientific Committee on Oceanic Research (ICSU), the Advisory Committee on Marine Resources Research (FAO) and the Advisory Group on Oceanic Research (WMO) ; Ponza and Rome, 29 April to 7 May 1969
prepared by the European Centre for Higher Education = Répertoire international des institutions de recherche sur l'enseignement supérieur / préparé par le Centre européen pour l'enseignement supérieur = Repertorio internacional de instituciones de investigación sobre enseñanza superior / preparado por el Centro Europeo para la Enseñanza Superior