MLA

Conway, Gordon R, and Edward B Barbier. After the Green Revolution : Sustainable Agriculture for Development. London: Earthscan Publications, 1990.

APA

Conway, G. R, & Barbier, E. B. (1990). After the green revolution : sustainable agriculture for development. London: Earthscan Publications.

Chicago

Conway, Gordon R., and Edward B Barbier. After the Green Revolution: Sustainable Agriculture for Development. London: Earthscan Publications, 1990.