Gaya APA

Ackery, P., Vane-Wright, R. (1984). The Biology of butterflies : symposium of the Royal Entimological Society of London number 11 . London: Academic Press.

Gaya MLA

Ackery, P.R.., Vane-Wright, R.I.. "The Biology of butterflies : symposium of the Royal Entimological Society of London number 11". London: Academic Press, 1984. Text.