| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Postcards, Level 1 | 978-0-13-092570-1 (0-13-092570-5) | 2002 | Brian Abbs · Chris Barker · Ingrid Freebairn |
| Postcards, Level 3 | 978-0-13-092591-6 (0-13-092591-8) | 2003 | Brian Abbs · Chris Barker · Ingrid Freebairn |