29 December 1970
| Title | Language | Date |
|---|---|---|
| Aanschrijving nr. 101 dd. 29.12.1970 | Dutch | 29-12-1970 |
| Circulaire Ci.R.9 USA/255.902 dd. 29.12.1970 | Dutch | 29-12-1970 |
| Circulaire nr. Ci.R.9 U.S.A./255.902 dd. 29.12.1970 | Dutch | 29-12-1970 |
| Circulaire n° 101 dd. 29.12.1970 | French | 29-12-1970 |
| Circulaire Ci.R9 USA/255.902 dd. 29.12.1970 | French | 29-12-1970 |
