| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Dangerous Journey | 978-0-435-27276-0 | 1992 | Alwyn Cox |
| Macmillan Readers Marco Beginner Pack | 978-1-4050-7626-5 | 2005 | |
| Marco: Beginner Level | 978-0-435-27168-8 | 1992 | |
| Marco Esplen Hgr Beg | 978-0-435-27023-0 | 1976 | |