Butt, John <br/><br/>
A New reference grammar of modern Spanish / 
John Butt. 
 - 4th 
 - London :  Arnold,  2004. 
 - x, 605 p.: 24.5 cm. 
<br/><br/> Lex: BR 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>0-340-81033-5 
<br/><br/><label>LC Class. No.: </label>468.2421 B98 c2004