Turner, John Derfel. <br/><br/>
Introduction to the language laboratory. 
 Language laboratory 

 - [London] :  University of London Press,  [1968] 
<br/><br/> First published in 1965. 
<br/><br/>With revised bibliography. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Language laboratories.