Swan, Michael  David Baker <br/><br/>
Practical english usage  : diagnostic tests to accompany practical english usage  

 - China  Oxford University Press  2010 
 - 2 v., vii, 191 p.  ; 23.3 cm. 
<br/><br/> Answer Key also available 
<br/><br/><label>ISBN: </label>9780194311700 (pbk) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language<br/>English grammar--English Usage--Practical English--Common Errors--Vocabulary--Tenses--RILL
<br/><br/><label>Dewey Class. No.: </label>428.24  / SWA