Pett, Marjorie A. Nonparametric Statistics for Health Care Research: Statistics for Small Samples and Unusual Distributions Marjorie A. Pett - 2nd ed. - Los Angeles Sage 2016 - xv, 451p. ISBN: 1452281964 Subjects--Topical Terms: Medicine --statistical methods Nonparametric statistics LC Class. No.: R853 / .P48 2016