776.
Bumble Bees of North America: an Identification Guide
by Williams, Paul H., Thorp, R...
ISBN: 9781400851188
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British Bees: an Introduction to the Study of the Natural History and Economy of the Bees In...
by Shuckard, William Edward 18...
ISBN: 9781014220264
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Specieications [sic] and Instructions for Constructing and Working Hough's Soper Improved Be...
by Hough, William S.
ISBN: 9781014529213