Bluman, Allan G. <br/><br/>
Elementary statistics:  a step by step approach/. 
Allan G. Bluman,  
 - Chicago:  Irwin,  C 1992 
 - 684p.  26cm. 
<br/><br/><label>ISBN: </label>0697171655 
<br/><br/><label>Dewey Class. No.: </label>519.5