@book{4808,
	author = {Young, Cynthia Y.},
	title = {Trigonometry /},
	publisher = {Wiley,},
	year = {c2007.},
	address = {Hoboken, NJ :},
	note = {Includes indexes.},
	url = {http://www.loc.gov/catdir/toc/ecip072/2006033465.html}
}