Trap-nesting wasps and bees: life histories, nests, and associates Krombein, Karl V. creator text book Washington Smithsonian Press 1967 1967
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ENG Bees Wasps QL569 .K84 Publication (Smithsonian Institution), 4670 https://www.biodiversitylibrary.org/bibliography/46295 177741 67019732 10.5962/bhl.title.46295 DLC