Levin, Jack. <br/><br/>
Elementary statistics in social research / 
Jack Levin, James Alan Fox. 
 - 7th ed. 
 - New York :  Longman,  c1997. 
 - xii, 419 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0673469581 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Statistical methods.<br/>Statistics.