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London School of Economics and Political Science (1895-)(57)
World Federation of Scientific Workers (1946-1994)(43)
Pugwash Conference on Science and World Affairs (22, 1972, Oxford)(35)
Continuation Committee of the World Conference on Faith and Order(32)
London School of Economics and Political Science. Population Investigation Committee(29)
Zentral- und Landesbibliothek Berlin (4983)