Cita APA (7th ed.)

HALSALL FRED. (1999). DATA COMMUNICATION, COMPUTER NETWORKS AND OPEN SYSTEM (4TH ED.). ADDISON-WESLEY.

Cita Chicago (17th ed.)

HALSALL FRED. DATA COMMUNICATION, COMPUTER NETWORKS AND OPEN SYSTEM. 4TH ED. HARLOW: ADDISON-WESLEY, 1999.

Cita MLA (9th ed.)

HALSALL FRED. DATA COMMUNICATION, COMPUTER NETWORKS AND OPEN SYSTEM. 4TH ED. ADDISON-WESLEY, 1999.