Cita APA

Held, G. (1994). Understanding data communications (4th ed.). Sams Pub.

Citación estilo Chicago

Held, Gilbert. Understanding Data Communications. 4th ed. Carmel, Ind: Sams Pub, 1994.

Cita MLA

Held, Gilbert. Understanding Data Communications. 4th ed. Sams Pub, 1994.

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