Longman · Multilingual Matters
| title | media type | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|---|
| Introduction to Bilingualism | Paperback | 978-0-582-29143-0 (0-582-29143-7) | 1991 | |
| Trilingualism in Family, School and Community | " | 978-1-85359-692-6 (1-85359-692-2) | 2003 | Jehannes Ytsma |
| Trilingualism in Family, School and Community | Hardcover | 978-1-85359-693-3 (1-85359-693-0) | 2003 | " |