@book{45548,
	author = {Eagles, Paul F. J., and McCool, Stephen F. and ebrary, Inc.},
	title = {Tourism in national parks and protected areas},
	publisher = {CABI Pub.,},
	year = {c2002.},
	address = {New York :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10060456}
}