Q. TheOrganization of American States (OAS) charter came into force on………………………… (Solved)
1. 13 december 1958
2. 13 december 1949
3. 13 december 1950
4. 13 december 1951
- d. 13 december 1951
1. 13 december 1958
2. 13 december 1949
3. 13 december 1950
4. 13 december 1951