(2004). Virtual private networking a construction, operation and utilization guide / Gilbert Held. [electronic resource].
Chicago-čujuhus (17. p.)Virtual Private Networking a Construction, Operation and Utilization Guide / Gilbert Held. [electronic Resource]. 2004.
MLA-čujuhus (9. p.)Virtual Private Networking a Construction, Operation and Utilization Guide / Gilbert Held. [electronic Resource]. 2004.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.