Human communication :  the public health aspects of hearing, language and speech disorders / 
US Dept. of Health, Education and Welfare 
 - Bethesda, Md. :  US Dept. of Health, Education and Welfare  1968. 
 - 28 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hearing problems<br/>Speech disorders