Sinclair, Barbara,   1940- <br/><br/>
Activate your English:  pre-intermediate/ 
Barbara Sinclair. 
 - Cambridge:  Cambridge University Press,  1996. 
 - 3 v.:  ill.  +1 spoken cassette. 
<br/><br/>Course book -- Teacher's book -- Self-study workbook/Barbara Sinclair with Gregory Hoehner. 
<br/><br/><label>ISBN: </label>0521425700 (teacher's book) 0521425689 (Course book) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Study and teaching--Foreign speakers
<br/><br/><label>LC Class. No.: </label>PE1128