American English File 4 :  Teacher's Book/ 
Clive Oxenden...[et. at]. 
 - Oxford :  Oxford Univ Press,  2009.  
 - 247 p :  ill ;  28 cm. 
<br/><br/><label>ISBN: </label>9780194774659 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Study and teaching--United States.<br/>English language--United States--Problems, exercises, etc.<br/>English language--Sound recordings in foreign speakers.
<br/><br/><label>LC Class. No.: </label>PE2807  / .O943 2013 
<br/><br/><label>Dewey Class. No.: </label>427.973  / AME