APA aipamena

(1978). International telecommunications: Challenge and change in the 1980s. Amsterdam.

Chicago Style aipamena

International Telecommunications: Challenge and Change in the 1980s. Amsterdam, 1978.

MLA aipamena

International Telecommunications: Challenge and Change in the 1980s. Amsterdam, 1978.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.