Conover, W. J. Practical nonparametric statistics / W. J. Conover. - 2nd ed. - New York : Wiley, 1980 - x, 491 p. : ill. ; 24 cm. Bibliography: p. 428-449. ISBN: 0471028673 Subjects--Topical Terms: Nonparametric statistics. Dewey Class. No.: 519.53 / COP 1980