@book{3575,
	author = {Swanson, Timothy M.},
	title = {Economics for the wilds :},
	publisher = {Island Press,},
	year = {c1992.},
	address = {Washington, D.C. :},
	url = {http://www.loc.gov/catdir/enhancements/fy0666/92015757-d.html}
}