Bluma, Allan G <br/><br/>
Elementary statistics   a step by step approach 

 - 3 ed. 
 - United States  Mcgraw-hill  1998 
 - 687 p. 
<br/><br/><label>ISBN: </label>9780256234305 
<br/><br/><label>Dewey Class. No.: </label>519.5