Elderton, William Palin,  Sir,  1877-1962. <br/><br/>
Frequency curves and correlation, 
by W. Palin Elderton ... 
 - 2d ed. 
 - London,  C. & E. Layton,  1927. 
 - vii, [1], 239 p., 1 l.  ill. 
<br/><br/> "First edition, 1906.  Second edition, 1927." 
<br/><br/>"References": p. 232-234. 
<br/><br/><label>LCCN: </label>e  28000084  
<br/><br/><label>LC Class. No.: </label>HA31  / .E4 1927 
<br/><br/><label>National Library of Medicine Call No.: </label>HA 29  / E37f 1927