"freer, john . "
computer communications and networks: / john.. freer - 1 ed. - new delhi : east-west press 1988. - "x, 432p.; 24 cm."
81-85336-33-4
--
005. 71 fre
computer communications and networks: / john.. freer - 1 ed. - new delhi : east-west press 1988. - "x, 432p.; 24 cm."
81-85336-33-4
--
005. 71 fre