ArausJLFebreroABuxóRRodríguez-ArizaMOMolinaFCamalichMD. (1997) Identification of ancient irrigation practices based on the carbon isotope discrimination of plant seeds: A case study from the south-east Iberian Peninsula. Journal of Archaeological Science24: 729–740.
2.
HarrisDR (1996) The Origins and Spread of Agriculture and Pastoralism in Eurasia. Washington: Smithsonian Institution Press.