Singleton, David. <br/><br/>
Language acquisition :  the age factor / 
David Singleton and Lisa Ryan. 
 - 2nd ed. 
 - Clevedon :  Multilingual Matters Ltd.,  2004. 
 - viii, 289 p. 
 - Second Language Acquisition ;  9 .
<br/><br/>Includes bibliographical references (p.229-277) and index. 
<br/><br/><label>ISBN: </label>1853597570 (pbk): 1853597589 (hbk) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Language acquisition--Age factors.
<br/><br/><label>LC Class. No.: </label>P118.65  / .S56