Lawley, D. N <br/><br/>
Factor analysis as a statistical method / 
D. N. Lawley and A. E. Maxwell 
 - 2nd ed. 
 - London :  Butterworths,  1971 
 - viii, 153 p. :  ill. ;  23 cm. 
<br/><br/>Bibliography : p. 147-149 
<br/><br/><label>ISBN: </label>0408701528 
<br/><br/><label>LCCN: </label>72-177338 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematical statistics<br/>Factor analysis