Elementary statistics 
[by] Janet T. Spence [and others]. 
 - 2d ed. 
 - New York,  Appleton-Century-Crofts  [1968] 
 - ix, 245 p.  illus.  24 cm. 
 - The Century psychology series .
<br/><br/> First ed. by B. J. Underwood and others. 
<br/><br/>Bibliographical footnotes. 
<br/><br/><label>Source: </label>B-1366 
<br/><br/><label>LCCN: </label>68013432  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology--Statistical methods.<br/>Psychometrics.
<br/><br/><label>LC Class. No.: </label>HA29.H63 1968  / .H63 1968 
<br/><br/><label>Dewey Class. No.: </label>519.5/02415