APA ציטוט

Bell Telephone Laboratories. (1971). Transmission systems for communications (Rev. 4th ed.). Bell Telephone Lab..

Chicago Style (17th ed.) Citation

Bell Telephone Laboratories. Transmission Systems for Communications. Rev. 4th ed. New York: Bell Telephone Lab., 1971.

ציטוט MLA

Bell Telephone Laboratories. Transmission Systems for Communications. Rev. 4th ed. Bell Telephone Lab., 1971.