Agricultura: diferència entre les revisions

* Wells, Spencer. ''The Journey of Man: A Genetic Odyssey''. Princeton University Press, 2003. ISBN 0-691-11532-X.

* Wickens, G.M.(1976). 'What the West borrowed from the Middle East', in Introduction to Islamic Civilization, edited by R.M. Savory, Cambridge University Press, Cambridge.

 

 

 

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