Better crops for food :
[Symposium on Better Crops for Food, held at the Ciba Foundation, London, 14-16 September 1982 /
editors: Jonathan Nugent (organizer) and Maeve O'Connor].

APA Citation

Symposium on Better Crops for Food (1982 : Ciba Foundation)., O'Connor, M., Nugent, J. (1983). Better crops for food: [Symposium on Better Crops for Food, held at the Ciba Foundation, London, 14-16 September 1982. London: Pitman.

MLA Citation

Symposium on Better Crops for Food (1982 : Ciba Foundation), Maeve O'Connor, and Jonathan Nugent. Better Crops for Food: [Symposium On Better Crops for Food, Held At the Ciba Foundation, London, 14-16 September 1982. London: Pitman, 1983.

Warning: These citations may not always be complete (especially for serials).