Biodiversity Heritage Library mailto:biodiversitylibrary@gmail.com Trap-nesting wasps and bees: life histories, nests, and associates Krombein, Karl V. 25873078 Q6372332 creator text book Smithsonian Libraries and Archives Washington Smithsonian Press 1967 1967
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 ENG Bees Wasps QL569 .K84 Publication (Smithsonian Institution), 4670 https://www.biodiversitylibrary.org/item/100149 177741 67019732 10.5962/bhl.title.46295 Smithsonian Libraries and Archives https://www.biodiversitylibrary.org/item/100149 https://www.biodiversitylibrary.org/pagethumb/32094149 Permission_to_digitize_granted_by_rights_holder DLC item/100149 Machine-generated from BHL metadata