@book{47466,
	author = {Owen, Oliver S., and Chiras, Daniel D.},
	title = {Natural resource conservation :},
	publisher = {Prentice Hall,},
	year = {c1995.},
	address = {Englewood Cliffs, N.J. :},
	edition = {6th ed.},
	url = {http://www.loc.gov/catdir/toc/fy0713/94017797.html}
}