Harley, Birgit <br/><br/>
The development of second language proficiency 
Birgit Harley, Patrick Allen, Jim Cummins, Merrill Swain 
 - New York  Cambridge university press  1994 
 - 248 p.  15*23 cm. 
<br/><br/><label>ISBN: </label>0521387957 9780521387958 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Language and languages -- Study and teaching -- Congresses.<br/>Second language acquisition -- Congresses.<br/>Language and languages -- Study and teaching<br/>Second language acquisition<br/>English language -- Study and teaching -- Foreign speakers.
<br/><br/><label>Dewey Class. No.: </label>420  / HAR.