(1990). World guide to scientific associations and learned societies (5th ed.). K.G.Saur.
Cita Chicago Style (17a ed.)World Guide to Scientific Associations and Learned Societies. 5th ed. München [etc.]: K.G.Saur, 1990.
Cita MLA (9a ed.)World Guide to Scientific Associations and Learned Societies. 5th ed. K.G.Saur, 1990.
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