Griffiths, S.R. and Downes, L.W. <br/><br/>
Educational statistics for beginners 

 - London  ; Methuen Educational  , 1969 
 - vi,115p. 
<br/><br/><label>ISBN: </label> 15 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational Statistics<br/>Statistics
<br/><br/><label>Dewey Class. No.: </label>519.5  / GRI