Thomson, Audrey J. <br/><br/>
A practical English grammar / 
Audrey J. Thomson, Agnes V. Martinet 
 - Fourth ed. 
 - Oxford :  Oxford University Press,  1986 
 - 383 p.  22 cm 
<br/><br/><label>ISBN: </label>0-19-431348-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Foreign literature