Davis, Fiona <br/><br/>
Active grammar :  with answers / 
by Fiona Davis, Wayne Rimmer 
 - Cambridge :  Cambridge University Press,  2011 
 - 2 v. :  col. ill. ;  28 cm. +  2 CD-ROM 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>9780521732512 (pbk. : v. 1) 9780521175999 (pbk. : v. 2) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Textbooks for foreign speakers<br/>English language--Grammar<br/>English language--Grammar--Problems, exercises, etc.