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By: Zschokke, FriedrichEdition:Publication info: Berlin, J. Springer, 1919Volume:Series:Holding Institution: American Museum of Natural History LibrarySubjects: 59.11,74 FlightBHL Collections:
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By: Œhmichen, Étienne.Edition:Publication info: Paris, Dunod, 1920Volume:Series:Holding Institution: American Museum of Natural History LibrarySubjects: 59.11,74 Birds FlightBHL Collections: