Pett, Marjorie A. <br/><br/>
Nonparametric statistics for Health care Research: Statistics for small samples and unuaual distributions/2nd ed. 

 - U K  Sage Publications  2016 
 - 451p. 
<br/><br/><label>ISBN: </label>978-1-4522-8196-4 
<br/><br/><label>Subjects--Index Terms: </label>Nonparametric statistics 
<br/><br/><label>Dewey Class. No.: </label>519.234  / PET