@book{13158,
	author = {Southgate, Douglas DeWitt, and Graham, Douglas H.},
	title = {The world food economy /},
	publisher = {Blackwell,},
	year = {2007.},
	address = {Malden, MA :},
	url = {http://www.loc.gov/catdir/toc/ecip0618/2006025722.html}
}