by David W. Ribble
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The monotypic North American subgenus La...
Endocrinology, neuroendocrinology, neuro...
The nest biology of the bee Andrena (Pti...
A revision of the bees of the genus Andr...
Systematics and ecology of bees of the s...
Prodromus of American bees of the genus ...
A subgeneric classification of the New W...