Die Fussbildungen der Vögel
Article
1871
Journal für Ornithologie
19
Series: 3
401--458
BioStor
German
Berlin, Friedländer,
BioStor: https://biostor.org/reference/141882 DOI: https://doi.org/10.1007/bf02249516
Public domain. The BHL considers that this work is no longer under copyright protection.
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