First language attrition / 
edited by Herbert W. Seliger and Robert M. Vago 
 - Cambridge :  The University Press,  1991 
 - xiv, 259 p. :  ill. ;  23 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0521344263 :  USD 35.00 0521348838 (pbk) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Language attrition<br/>Bilingualism<br/>Language and languages
<br/><br/><label>Dewey Class. No.: </label>404.2