Hurd, Paul David, 1921-  Hurd, Paul David, 1921- <br/><br/>
Principal sunflower bees of North America with emphasis on the Southwestern United States (Hymenoptera, Apoidea) / 
Paul D. Hurd, Jr., Wallace E. LaBerge, and E. Gorton Linsley. 
 - Washington :  Smithsonian Institution Press,  1980. 
 - Smithsonian contributions to zoology ;  no. 310 .
<br/><br/>Bibliography: p. 143-153. 
<br/><br/><label>LCCN: </label>79018794 //r852 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bees -- Southwest, New.--Bees -- Southwest, New.<br/>Bees -- North America.--Bees -- North America.<br/>Helianthus.<br/>Insect-plant relationships -- Southwest, New.--Insect-plant relationships -- Southwest, New.<br/>Ins30187ect-plant relationships -- North Ame--Ins30187ect-plant relationships -- North Ame<br/>Insects -- Southwest,--Insects -- Southwest,<br/>Insects -- North Ame--Insects -- North Ame
<br/><br/><label>LC Class. No.: </label>QL1  QL567.1.S68  / .S54 no. 310 
<br/><br/><label>Dewey Class. No.: </label>591/.08 s  595.7/99/0979