Johnson, Robert Russel,  1939- <br/><br/>
Elementary statistics / 
Robert Johnson 
 - 4th ed. 
 - Boston, MA. :  PWS-KENT Publishing Company,  1984 
 - 557 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0871504065 
<br/><br/><label>LCCN: </label>83-011557 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statistics