TY  - BOOK
AU  - Hurd, Paul D., Jr.
TI  - Principal sunflower bees of North America with emphasis on the southwestern United States (Hymenoptera: Apoidea)
T2  - Smithsonian contributions to zoology
U1  - 595.799 
PY  - 1980///
CY  - Washington
PB  - Smithsonian Institution
KW  - Abejas
KW  - Girasol
KW  - Plantas e insectos
ER  -