APA (7th ed.) Citation

Langley, G. (1991). Telecommunications primer (3a ed.). Pitman Publishing Corporation.

Chicago Style (17th ed.) Citation

Langley, Graham. Telecommunications Primer. 3a ed. Londres: Pitman Publishing Corporation, 1991.

MLA (9th ed.) Citation

Langley, Graham. Telecommunications Primer. 3a ed. Pitman Publishing Corporation, 1991.

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