Audio-lingual English :  a self-instructional language laboratory program : teacher's guide / 
prepared by English Language Services, Inc. 
 - New York :  Collier Macmillan International,  1968 
 - 151 p. ;  29 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Textbooks for foreign speakers