| 5.
| Belgium - Ports and Waterways Project (English) | 1954/12/31 | P75 | Memorandum & Recommendation of the President |
| 6.
| Belgium - Charleroi - Clabecq Canal Project (English) | 1957/08/31 | P139 | Memorandum & Recommendation of the President |
| 8.
| Public external debt of Belgium and Luxembourg (English) | 1950/08/31 | 67014 | Pre-2003 Economic or Sector Report |
| 9.
| The creditworthiness of Belgium (English) | 1951/09/10 | 67102 | Pre-2003 Economic or Sector Report |
| 10.
| Economic report on Belgian Congo and Congo development plan (English) | 1951/09/10 | 67101 | Pre-2003 Economic or Sector Report |