| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| More Work in Progress: Workbook Cassette | 978-O-582-32657-6 (O-582-32657-5) | 1998 | Andy Hopkins · Joc Potter · Madeleine du Vivier |
J.-M. Duvivier · Jean-Manuel Duvivier · M.D · Marianne Duvivier