Variation in second language acquisition / 
edited by Susan Gass ... [et al.]. 
 - Clevedon, Avon, England :  Multilingual Matters,  c1989. 
 - 1 v. :  ill. 
 - Multilingual matters ;  49 .
 - Multilingual matters (Series) ;  49. .
<br/><br/> "Selected papers presented at the XIth Michigan Conference in Applied Linguistics ... held October 7-9, 1987 at the University of Michigan in Ann Arbor"--Pref. 
<br/><br/>v. 1. Discourse and pragmatics   
<br/><br/><label>ISBN: </label>1853590266  
<br/><br/><label>LCCN: </label>90015170     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Second language acquisition.<br/>Language and languages--Variation.