@book{15579,
	author = {Day, R. A. and Underwood, A. L.},
	title = {Quantitative analysis /},
	publisher = {Prentice-Hall,},
	year = {1980.},
	address = {Englewood Cliffs, N.J. :},
	edition = {4th ed.},
	note = {Includes index.}
}