peoplepill id: georg-johann-pfeffer
GJP
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The works
Books
Sources:
Openlibrary
1929
Zur Kenntnis tertiärer Landschnecken
Authors:
1912
Die Cephalopoden der Plankton-Expedition
Authors:
1993
The Cephalopoda of the Plankton Expedition
Authors:
Georg Johann Pfeffer