TY  - BOOK
AU  - Roubik,David W.
TI  - Ecology and natural history of tropical bees
U1  - 595.799 ROU 
PY  - 1989///
CY  - Cambridge : 
PB  - Cambridge University Press, 
KW  - Bees
KW  - Tropics
KW  - Ecology
ER  -