Bingham, Walter Van Dyke <br/><br/>
Aptitudes and aptitude testing 
Walker Van Dyke Bingham. 
 - New York  Harper & Brothers  1937. 
 - ix, 390 p.  diagrs. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>National Occupational Conference<br/>Occupations<br/>Ability<br/>Ability--Testing.