29 June 1990 | Publisher: National Legislative Bodies / National Authorities | Document type: National Legislation
29 May 1990 | Publisher: Economic Community of West African States (ECOWAS) | Document type: Multilateral Treaties/Agreements
30 June 1989 | Publisher: Economic Community of West African States (ECOWAS) | Document type: Multilateral Treaties/Agreements
1 July 1986 | Publisher: Economic Community of West African States (ECOWAS) | Document type: Multilateral Treaties/Agreements
17 December 1985 | Publisher: UN General Assembly | Document type: Resolutions/Recommendations/Declarations
6 July 1985 | Publisher: Economic Community of West African States (ECOWAS) | Document type: Multilateral Treaties/Agreements