Department of Republic Information United Nations, 1992
Buku Teks
Department of Republic Information United Nations
[publisher not identified], 2000
Buku Teks
United Nations Publications, 2004
Buku Teks
United Nations
Departemen of Public Information UN, 1995
Buku Teks
edited by James Barros
The Free Press, 1972
Buku Teks