1Clark,Gregory.2007.A Farewell to Alms.The NeolithicRevolution was the first Agricultural Revolution whenmankind changed from hunting and gathering to settledagriculture,including the domestication of animals.Accordingto archaeological findings,this re volution started in sixdifferent locations throughout the world.
2Malthus,Thomas R.The first edition was in 1798,the sixthedition in 1826.Essay on the Principle of Population.
3Gardner,Bruce,L.2002.American Agriculture in theTwentieth Century:How it flourished and What it cost.Harvard University Press.Cambridge,Massachusetts andLondon,England.
4Tomich,Thomas P,Peter Kilby,and Bruce F.Johnston.1995.Transforming Agrarian Economies:OpportunitiesSeized,Opportunities Missed.Cornell Univ.Press,Ithaca,London.
5Tsakok,Isabelle.2011.Success in Agricultural Transformation:What it Means and What Makes it Happen,CambridgeUniversity Press.
6Isabelle Tsakok. Success in Agricultural Transformation: What it Means and What Makes it Happen[M], Cam- bridge University Press. 2011.
7Bruce Gardner. American Agriculture in the Twentieth Century: How it flourished and What it cost. Harvard University Press. 2(X)2, Pp. 176.
8R. Douglas Hurt. American Agriculture: A Brief History [M]. Iowa State University Press. Ames, Iowa, 1994, Pp 379.