Classification of the Philippine operculate land shells of the family Helicinidae, with a synopsis of the species and subspecies of the genus Geophorus
Bartsch, Paul, 1871-1960
Article
1918
Journal of the Washington Academy of Sciences
8
643--657
BioStor
English
Washington [etc Washington Academy of Sciences]
BioStor: https://biostor.org/reference/77743 DOI: https://doi.org/10.5962/bhl.part.6492
Public domain. The BHL considers that this work is no longer under copyright protection.
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