Gower, Roger. <br/><br/>
Grammar in practice :  40 units of self-study grammar exercises with tests / 
Roger Gower. 2, [elementary]. 
 - Cambridge :  Cambridge University Press,  2002. 
 - 71p. :  ill. ;  21 cm. 
<br/><br/><label>ISBN: </label>0521665663 :  No price 9780521665667 
<br/><br/><label>Nat. Bib. No.: </label>GBA306735  bnb 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Textbooks for foreign speakers.<br/>English language--Grammar--Problems, exercises, etc.