@book{100049,
	author = {Mazoyer, Marcel,  and Roudart, Laurence },
	title = {A history of world agriculture :},
	publisher = {Monthly Review Press,},
	year = {c2006.},
	address = {New York :},
	url = {http://www.loc.gov/catdir/toc/ecip056/2005000250.html}
}