@book{12240,
	author = {Lier, H. N. van. and International Studygroup on Multiple Use of Land.},
	title = {New challenges in recreation and tourism planning /},
	publisher = {Elsevier,},
	year = {c1993.},
	address = {Amsterdam ;},
	note = {"ISOMUL"--Cover.},
	url = {http://www.loc.gov/catdir/enhancements/fy0602/92035680-d.html}
}