1. Alexandratos, N., J. Bruinsma, G. Bödeker, J. Schmidhuber, S. Broca, P. Shetty, and M.G. Ottaviani, eds. 2006. World agriculture: towards 2030/2050 (Interim Report). Rome: Global Perspective Studies Unit, Food and Agriculture Organization of the United Nations (FAO).
2. Almekinders, C.J.M., and A. Elings. 2001. Collaboration of farmers and breeders: participatory crop improvement in perspective. Euphytica 122: 425–438.
3. Alroy, J. 2008. Dynamics of origination and extinction in the marine fossil record. Proceedings of the National Academy of Sciences 105(S1): 11536–11542.
4. Altieri, M.A. 1990. Why study traditional agriculture? In Agroecology, ed. C.R. Carroll, J.H. Vandermeer, and P.M. Rosset, 551–564. New York: McGraw-Hill.
5. Altieri, M.A. 2000. Multifunctional dimensions of ecologically-based agriculture in Latin America. Berkeley: University of California.