From Alexander von Humboldt's correspondence with Thomas Jefferson and Albert Gallatin : contribution to the 15th annual symposium of the Society for German American Studies, Washington, D. C., Georgetown University, April 25 - 28, 1991
Schwarz, Ingo (1949-); Alexander-von-Humboldt-Forschungsstelle <Berlin>
Berlin : Alexander-von-Humboldt-Forschungsstelle, 1991 - 20 Seiten
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