Krombein, Karl V. <br/><br/>
Life history notes on some Egyptian solitary wasps and bees and their associates (Hymenoptera : Aculeata) 

 - Washington :  Smithsonian Institution,  1969 
 - 18 p.  : ilus. 
 - Smithsonian contributions to zoology  ; 19 .
 - Smithsonian contributions to zoology  ; 19 .
<br/><br/><label>LCCN: </label>29425 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Abejas.<br/>Avispas.