Conway, G. R., & Barbier, E. B. (1990). After the green revolution: Sustainable agriculture for development. London: Earthscan Publications.
Cita Chicago (17th ed.)Conway, Gordon R., i Edward B. Barbier. After the Green Revolution: Sustainable Agriculture for Development. London: Earthscan Publications, 1990.
Cita MLA (8th ed.)Conway, Gordon R., i Edward B. Barbier. After the Green Revolution: Sustainable Agriculture for Development. London: Earthscan Publications, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.