Hoel, Paul G. Basic statistics for business and economics / Paul G. Hoel and Raymond J. Jessen. - 3rd ed. - New York John Wiley & Sons 1982. - X, 629 p. 24 cm. ISBN: 0-471-09829-9 Subjects--Topical Terms: Estadística. LC Class. No.: HA29 / .H63 1977