Levin, Jack. <br/><br/>
Elementary statistics in social research :  the essentials  / 
Jack Levin, James Alan Fox 
 - 2nd ed 
 - Boston :  Pearson Edication, Inc ,  c2007 
 - xii, 365p. :  ill. ;  23 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>020548493X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Statistical methods<br/>Statistic