Stephenson, Helen <br/><br/>
Life / 
Helen Stephenson, Paul Dummett, John Hughes 
 - Boston :   National Geographic Learning/Cengage Learning,  2015 
 - 8 v. :  il. ;  28 cm. + 2 CD ROM (4 3/4 pulg.) 
<br/><br/>Contenido :  v.1 Student book 1 -- v.2 Student book 2 -- v.3 Student book 3 -- v.4 Student book 4 -- v.5 Student book 5 -- v.6 Student book 6  v. 7 Workbook 1 -- Teacher's guide 2 
<br/><br/><label>ISBN: </label>9781305255722 9781305255845 9781305256132 9781305256200 9781305256347 9781305256354 9781305256996 9781305256590 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Método de enseñanza--Libros de texto
<br/><br/><label>LC Class. No.: </label>PE1128  / S74 2015