Krombein, Karl V. <br/><br/>
Trap-nesting wasps and bees: life histories, nests, and associates  Karl V. Krombein. 

 - Washington  Smithsonian Press  1967 
 - vi, 570p. 23cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Entomology Insects  Animals-Habitations  Nesting he. 
<br/><br/><label>Dewey Class. No.: </label>595.79  / K97T