1. Diamond, J. Guns, Germs, and Steel: the Fates of Human Societies (Norton, New York, 1997).
2. Cavalli-Sforza, L. L., Menozzi, P. & Piazza, A. The History and Geography of Human Genes (Princeton Univ. Press, Princeton, 1994).
3. Clutton-Brock, J. Domesticated Animals From Early Times (Univ. Texas Press, Austin, 1981).
4. Kiple, K. F. & Ornelas, K. C. The Cambridge World History of Food (Cambridge Univ. Press, Cambridge, 2000).
5. Ladizinsky, G. Plant Evolution under Domestication (Kluwer, Dordrecht, 1998).