Johnson, Robert Russell. <br/><br/>
Elementary statistics 

 - 3 ed. 
 - Belmont, Ca., :  Wadsworth,  1980 
 - 607 p.  : ilus. ; gráfs 
<br/><br/><label>LCCN: </label>17315 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Estadística.
<br/><br/><label>Dewey Class. No.: </label>519.5  / J4 1980