Cita APA (7a ed.)

Halsall, F. (1993). Data communications, computer networks, and open systems (3rd ed.). Addison-Wesley.

Cita Chicago Style (17a ed.)

Halsall, Fred. Data Communications, Computer Networks, and Open Systems. 3rd ed. Wokingham [etc.]: Addison-Wesley, 1993.

Cita MLA (9a ed.)

Halsall, Fred. Data Communications, Computer Networks, and Open Systems. 3rd ed. Addison-Wesley, 1993.