@book{15598,
	author = {Goeldner, Charles R. and Ritchie, J. R. Brent.},
	title = {Tourism :},
	publisher = {WILEY,},
	year = {2006.},
	address = {New York :},
	edition = {9th ed.},
	url = {http://www.loc.gov/catdir/bios/wiley043/2002000779.html}
}