@book{5871,
	author = {Gliessman, Stephen R. and Engles, Eric.},
	title = {Field and laboratory investigations in agroecology /},
	publisher = {Lewis Publishers ,},
	year = {c2000.},
	address = {Boca Raton, Fla. :},
	url = {http://www.loc.gov/catdir/enhancements/fy0646/99058376-d.html}
}