Thomson, Audrey Jean. <br/><br/>
A Practical English grammar. Exercises 1 /     
Audrey Jean Thomson; Agnes Wallace Martinet. 
 - 3rd ed. 
 - London ;  Oxford University Press,   1986 
 - 181 pages ; 20 cm. 
<br/><br/><label>ISBN: </label>9780194313438 
<br/><br/><label>Subjects--Topical Terms: </label><br/>--<br/>--<br/>Grammar.--