Wallin, John Edward Wallace  1876, <br/><br/>
Problems of subnormality / 
By j. e. Wallace wallin ; with an introduction by John w. withers 
 - 485 páginas 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Personas con discapacidad mental<br/>Personas con discapacidad mental--Educacion
<br/><br/><label>LC Class. No.: </label>RC628  / W34