Richards, Jack C. <br/><br/>
Interchange :  self study audio / 
by Jack C. Richards, Jonathan Hull & Susan Proctor 
 - 3rd Edition. 
 - 1 computer disk ;  (4 3/4 inches). 
<br/><br/>Self study audio [Intro Level] -- Self study audio [Level 1] -- Self study audio [Level 2] -- Self study audio [Level 3] 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language.--Study and teaching.--Sound recordings for foreign speakers.
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Sound recordings.--for foreign speakers.
<br/><br/><label>Dewey Class. No.: </label>428.0076