Ley P. <br/><br/>
Quantitative aspects of psychological assessment  an introduction 

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 - London  Duckworth  1972 
 - 180 p.  22 cm. 
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<br/><br/>  Psychological tests, Psychometrics 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychometrics<br/>Psychological tests
<br/><br/><label>Dewey Class. No.: </label>152.8  / LEY