APA (7th ed.) Citation

(2002). World Telecom: International telecommunication directories (18th ed.). Inter-Telecom Publishers.

Chicago Style (17th ed.) Citation

World Telecom: International Telecommunication Directories. 18th ed. London: Inter-Telecom Publishers, 2002.

MLA (8th ed.) Citation

World Telecom: International Telecommunication Directories. 18th ed. Inter-Telecom Publishers, 2002.

Warning: These citations may not always be 100% accurate.