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Die Ergebnisse meiner dipterologischen Früjahrsreise nach Algier und Tunis / Th. Becker.
By: Becker, Th.
Publication info: S.l. :s.n.,1907?
Contributed by: Smithsonian Institution Libraries
BHL Collections: Smithsonian Institution Libraries
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Revision der Gattung Chilosia Meigen / von Th. Becker.
By: Becker, Th.
Publication info: Halle :[Deutsche Akademie der Naturforscher Leopoldina],1894.
Contributed by: Smithsonian Institution Libraries
BHL Collections: Smithsonian Institution Libraries
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