Nonparametrics : statistical methods based on ranks / Erich L. Lehmann ; with the special assistance of H. J. M. D'Abrera. Lehmann, E. L. (Erich Leo), 1917- D'Abrera, H. J. M. Nonparametric statistics. QA278.8 .L43 2006 311.2 22 LEN Includes indexes. New York : McGraw-Hill, 1975. 1975. 2006 Text xvi, 463 p. : http://www.loc.gov/catdir/toc/fy0704/2006927419.html http://www.loc.gov/catdir/enhancements/fy0824/2006927419-d.html eng Holden-day series in probability and statistics