Walker, Elaine <br/><br/>
Grammar practice for intermediate students /  
Elaine Walker, Steve Elsworth 
 - Rev. ed. 
 - Essex :   Longman,   1997 
 - 179 p. :   il. 
<br/><br/><br/>España 
<br/><br/><label>ISBN: </label>0582217199 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Lenguas Extranjeras<br/>Gramática