A revision of North American bees of the subgenus Cnemidandrena (Hymenoptera, Andrenidae)
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| Natura: | Libro |
| Lingua: | English |
| Pubblicazione: |
Berkeley
University of California
1977, c1976
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| Serie: | University of California publications in entomology nUniversity of California publications in entomology
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| Soggetti: |