Statistics of special education for exceptional children and youth, 1957-58 : Final report 
U S Department of Health, Education and Welfare 
 - Washington, USA  U.S. Government Printing Office   1963 
 - vii,120p 
<br/><br/><br/>Biennial survey of education in the United States, 1956-58, chapter 5 
<br/><br/><label>Source: </label>Textual