TY  - BOOK
AU  - Nijhout, H. Frederik.
TI  - The development and evolution of butterfly: wing patterns 
SN  - 0874749212
PY  - 1991///
CY  - Washington
PB  - Smithsonian Institution Press
KW  - Butterflies
KW  - Anatomy
KW  - Wings
KW  - Development
ER  -