Segel, David,  1894- <br/><br/>
Intellectual abilities in the adolescent period. 

 - S. l. :  Federal Security Agency, Office of Education,  1948. 
 - number. 
<br/><br/> No 6 (1948, 41 p.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational tests and measurements<br/>Ability--Testing.