Johnson, Leonard G. <br/><br/>
Theory and technique of variation research 

 - Amsterdam  Elsevier Publishing Company  1964 
 - viii,105p.  22cm. 
<br/><br/> Bibliography: p.101 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statistics
<br/><br/><label>LC Class. No.: </label>TA161.J6