Elder, Janet,  <br/><br/>
Opening doors :  understanding college reading / 
Janet Elder, Joe Cortina 
 - Seventh edition. 
 - xxiv, 831 pages :  illustrations ;  21 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9780073513515 (Student edition : softcover : acidfree paper) 9780077531386 (softcover : acidfree paper) 
<br/><br/><label>LCCN: </label>2012048744 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Lengua inglesa--Lectura<br/>Lectura--Educación superior
<br/><br/><label>Dewey Class. No.: </label>428.6  / El22o  / 2014