@book{7140,
	author = {Hestenes, Marshall D. and Hill, Richard O.},
	title = {Algebra and Trigonometry /},
	publisher = {Prentice-Hall,},
	year = {c1986.},
	address = {Englewood Cliffs, N.J. :},
	edition = {2nd ed.},
	note = {Rev. ed. of: Algebra and trigonometry with calculators. c1981.}
}