Swineford, Frances <br/><br/>
A study in factor analysis  the nature of the general,verbal, and spatial bi-factors 

 - Chicago  University of Chicago Press  1948 
 - xi, 70p. 
<br/><br/><label>Subjects--Index Terms: </label>Basic stastistics  Factor analysis 
<br/><br/><label>Dewey Class. No.: </label>519.535 9  / SWI