TY  - BOOK
AU  - Mitchell, Theodore B.
TI  - A generic revision of the Megachilene bees of the Western hemisphere (Hymeoptera: Megachilidae)
T2  - Contribución from the Department of Entomology
U1  - 595.799 
PY  - 1980///
CY  - Raleigh, N.C.
PB  - Nort Carolina State University
KW  - Abejas
ER  -