Ayres, Leonard Porter,  1879-1946. <br/><br/>
Psychological tests in vocational guidance, 
by Leonard P. Ayres. 
 - New York city,  Division of education, Russell Sage foundation,  1913. 
 - 1 p. l., 6 p.  23 cm. 
 - [Russell Sage foundation, New York.  Dept. of child hygiene.  Pamphlet]  E128 .
<br/><br/> Reprinted from the Journal of educational psychology, April, 1913. 
<br/><br/><label>LCCN: </label>e  13000940  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vocational guidance.
<br/><br/><label>LC Class. No.: </label>HF5381  / .A86