Cita APA (7a ed.)

Halsall F. Fred. (1997). Data Communications, Computer Networks and Open Systems (4th ed.). USA, Addison-Wesley Publishing Company, 1997.

Cita Chicago Style (17a ed.)

Halsall F. Fred. Data Communications, Computer Networks and Open Systems. 4th ed. USA, Addison-Wesley Publishing Company, 1997, 1997.

Cita MLA (9a ed.)

Halsall F. Fred. Data Communications, Computer Networks and Open Systems. 4th ed. USA, Addison-Wesley Publishing Company, 1997, 1997.