United Nations Conference on Trade and Development. (2003). Information and communication technology development indices. United Nations.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)United Nations Conference on Trade and Development. Information and Communication Technology Development Indices. New York: United Nations, 2003.
MLA -ийн эшлэл (9 дэх хэвлэлт)United Nations Conference on Trade and Development. Information and Communication Technology Development Indices. United Nations, 2003.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.