Aveling, Francis,  1875- <br/><br/>
Directing mental energy / 
by Francis Aveling ; with diagrams and one plate. 
 - London :  University of London Press,  1927. 
 - x, 276 p. :  ill., pl., diagrs. ;  23 cm. 
<br/><br/>Bibliography: p. 262-269. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology, Applied.
<br/><br/><label>Dewey Class. No.: </label>159  / AVD 1927