Maldonado, Gloria. <br/><br/>
You can 
Gloria Maldonado, Carmen Mercado. 
 - Río Piedras, P.R.  Librotex  1988. 
 - 2 v. 
<br/><br/>Student book. -- Workbook. 
<br/><br/><label>LCCN: </label>gar31000727  
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Study and teaching--Foreign speakers.