Routledge encyclopedia of language teaching and learning / 
edited by Michael Byram and Adelheid Hu 
 - 2nd ed. 
 - New York :  Routledge,  2013 
 - xxxvi, 817 p. ;  26 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9780415593762 041559376X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Language and languages--Study and teaching œv Encyclopedias