05 July 1971
| Title | Language | Date |
|---|---|---|
| Circulaire Circ. 954 dd. 05.07.1971 (Deel 1) | Dutch | 05-07-1971 |
| Circulaire Circ. 954 dd. 05.07.1971 (Deel 2) | Dutch | 05-07-1971 |
| Circulaire Circ. 954 dd. 05.07.1971 (Partie 1) | French | 05-07-1971 |
| Circulaire Circ. 954 dd. 05.07.1971 (Partie 2) | French | 05-07-1971 |
