HALSALL FRED. (1999). DATA COMMUNICATIONS COMPUTER NETWORK AND OPEN SYSTEMS. ADDISON WESLEY.
Cita Chicago Style (17a ed.)HALSALL FRED. DATA COMMUNICATIONS COMPUTER NETWORK AND OPEN SYSTEMS. HARLAW: ADDISON WESLEY, 1999.
Cita MLA (9a ed.)HALSALL FRED. DATA COMMUNICATIONS COMPUTER NETWORK AND OPEN SYSTEMS. ADDISON WESLEY, 1999.
Precaución: Estas citas no son 100% exactas.