| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Legal Issues of European Integration | 978-90-268-1178-4 (90-268-1178-0) | 1980 |
| Legal Issues of European Integration | 978-90-268-1070-1 (90-268-1070-9) | 1979 |
| Legal Issues of European Integration | 978-90-268-1079-4 (90-268-1079-2) | 1979 |