Gaya APA

Flanagan, W, A. (2012). VolP and Unified Communications : Internet Telephony and the Future Voice Network . Hoboken, New Jersey :: Simultaneously,.

Gaya MLA

Flanagan, William, A.. "VolP and Unified Communications : Internet Telephony and the Future Voice Network". Hoboken, New Jersey :: Simultaneously,, 2012. Monograf.