9 1 20 Pre-Intermediate (Workbook) + 2 CD Hughes, John Additional Author mixed material 9781133316138 United Kingdom National Geographic Learning 2013 9781133316138.jpg.jpg Elementary + CD Hughes, John Additional Author mixed material 9781133315698 United Kingdom National Geographic Learning 2014 9781133315698.jpg.jpg Upper-Intermediate Teacher's Book + CD Hughes, John Additional Author mixed material 9780194768153 New York Oxford 2008 9780194768153.jpg.jpg Intermediate Teacher's Book + CD Hughes, John Additional Author mixed material 9780194768061 New York Oxford 2008 9780194768061.jpg.jpg Intermediate Student Book + CD Hughes, John Additional Author mixed material 9780194768009 New York Oxford 2007 9780194768009.jpg.jpg Business Result (Intermediate Class CDs) Hughes, John Additional Author mixed material 9780194768047 Oxford 2008 9780194768047.jpg.jpg Elementry Teacher's Book + CD Hughes, John Additional Author mixed material 9780194748032 New York Oxford 2009 9780194748032.jpg.jpg Elementary (Workbook) + 2 CD Hughes, John Additional Author mixed material 9781133316039 United Kingdom National Geographic Learning 2014 9781133316039.jpg.jpg Pre-Intermediate + CD Hughes, John Additional Author mixed material 9781133315704 United Kingdom National Geographic Learning 2013 9781133315704.jpg.jpg