Elementary statistics 
[by] Benton J.Underwood ....et al.]. 
 - New York,  Appleton-Century-Crofts  [1954] 
 - ix, 242 p. :  ill. ;  23 cm. 
 - The Century psychology series .
<br/><br/>Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statistics.
<br/><br/><label>Dewey Class. No.: </label>519.5  / ELE 1954