@book{203662,
	author = {Larson, Ron and Hostetler, Robert P. and Houghton Mifflin Company.},
	title = {Algebra and trigonometry},
	publisher = {Houghton Mifflin Co.},
	year = {c2006.},
	address = {Boston},
	edition = {7th ed.},
	note = {Includes index.}
}