@book{4621,
	author = {Mantau, Udo.},
	title = {Recreational and environmental markets for forest enterprises :},
	publisher = {CABI Pub.,},
	year = {c2001.},
	address = {Wallingford, Oxon, UK ;},
	url = {http://www.loc.gov/catdir/enhancements/fy0610/00063018-d.html}
}