| title | media type | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|---|
| Learn Norwegian: A practical course for foreigners in spoken and written Norwegian | Paperback | 978-82-518-1421-8 (82-518-1421-9) | 1981 |
| Learn Norwegian: A Practical Course in Spoken and Written Norwegian | Hardcover | 978-82-03-22115-6 (82-03-22115-7) | 1995 |
| Learn Norwegian: A Practical Course in Spoken and Written Norwegian | Paperback | 978-82-03-16653-2 (82-03-16653-9) | 1991 |