Hays William L <br/><br/>
Statistics for the social sciences . 

 - 2 
 -  1973 
<br/><br/><label>Standard No.: </label>8569 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B280bSigma, L3