| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| English: Level 7 | 978-0-618-31004-3 | 2002 | Robert Rueda · Lynne Shapiro · Shane Templeton · C. Ann Terry · Catherine Valentino · Shelby A. Wolf |
| Houghton Mifflin English: Level 2 | 978-0-618-30997-9 | 2002 | Robert Rueda · Lynne Shapiro |
| Houghton Mifflin English: Level 4 | 978-0-618-31000-5 | 2004 | Robert Rueda · Lynne Shapiro · Shane Templeton · Herman G. B. Teule · Catherine Valentino · Shelby A. Wolf |
| Houghton Mifflin English Level 4 | 978-0-618-03080-4 | 2001 | Robert Rueda · Lynne Shapiro |
| Houghton Mifflin English Level 5 | 978-0-618-03082-8 | 2001 | Robert Rueda · Lynne Shapiro |
| Houghton Mifflin English: Level 6 | 978-0-618-31002-9 | 2002 | Robert Rueda · Lynne Shapiro · Shane Templeton · C. Ann Terry · Catherine Valention · Shelby A. Wolf |
| Houghton Mifflin English Level 6 | 978-0-618-03083-5 | 2001 | Robert Rueda · Lynne Shapiro |