Leaver  , Betty Lou . <br/><br/>
Developing professional-level language proficiency  [Book /] 
edited by Betty Lou Leaver and Boris Shekhtman. 
 - Cambridge ;  New York, NY :  Cambridge University Press,  2002. 
 - xiv, 308 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references (p. 280-295) and indexes. 
<br/><br/> All age. 
<br/><br/><label>ISBN: </label>0521816572 0521016851 (PBK.) 0521016851 
<br/><br/><label>LCCN: </label>2003544748 
<br/><br/><label>Nat. Bib. No.: </label>GBA2-W4775 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Language and languages--Study and teaching.
<br/><br/><label>LC Class. No.: </label>P53  / .D395 2002 
<br/><br/><label>Dewey Class. No.: </label>418.0071