TY  - BOOK
TI  - A monograph of the western hemisphere bumble bees (Hymenoptera : Apidae; Bombinae); the genus phrobombus, subgenus Cullumane bombus
T2  - Memoires of the Entomological Society of Canada; no.91
U1  - TR 595.799(02)   L3 
PY  - 1973///
CY  - Ottawa
PB  - The Entomological Society of Canada
KW  - Milliron, H.E.
KW  - Hymenoptera,Bees
ER  -