Düngungsversuche in den Deutschen Kolonien /
herausgegeben von Reichs-Kolonialamt.
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Viewability
Item Link | Original Source |
---|---|
Full view v.1 | University of Illinois at Urbana-Champaign |
Full view v.1-3:inc 1913 | Northwestern University |
Full view no.1-4 1913-14 | Cornell University |