TY  - BOOK
AU  - Ackery,P.R.
AU  - 
TI  - Milkweed butterflies
SN  - 0565008935
U1  - 595.78 
PY  - 1984///
CY  - London
PB  - British Museum (Natural History)
KW  - Milkweed butterflies
ER  -