HoppeRobert A.BankerDavid E.2010. Structure and Finances of U.S. Farms: Family Farm Report, 2010 Edition. Washington, DC: United States Department of Agriculture, Economic Research Service.
2.
KloppenburgJack. 2004. First the Seed: Political Economy of Plant Biotechnology, 1492–2000. Madison, WI: University of Wisconsin Press.
3.
MarxKarl. 1977. Capital. Volume 1. Trans. by FowkesBen. Chapters 27–30:877–913. New York, NY: Vintage.