Index to the documents of the General Conference: 4th extraordinary, 22nd and 23rd sessions 1982, 1983 and 1985.
Index to the documents of the General Conference: 4th extraordinary, 22nd and 23rd sessions 1982, 1983 and 1985.
- Paris : UNESCO, 1989.
- pag. irregular
DO 341.16: 001 (083.86) =20 IND.
DO 341.16: 001 (083.86) =20 IND.