@book{29976,
	author = {Gliessman, Stephen R. and Engles, Eric.},
	title = {Agroecology :},
	publisher = {Ann Arbor Press,},
	year = {c1998.},
	address = {Chelsea, MI :},
	url = {http://www.loc.gov/catdir/enhancements/fy0646/97033979-d.html}
}