Hayes Alfred S <br/><br/>
Language laboratory facilites : Technical guide for the selection, purchase, use, and maintenance 

 - Washington, USA  U.S. Government Printing Office   1963 
 - vii,119p. 
<br/><br/><br/>New meida for instruction 4 
<br/><br/><label>Source: </label>Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Teaching Technique