Dyfyniad APA

FREER, J. R. (1990). COMPUTER COMMUNICATIONS AND NETWORKS. MCGRAW HILL.

Dyfyniad Arddull Chicago

FREER, J R. COMPUTER COMMUNICATIONS AND NETWORKS. -: MCGRAW HILL, 1990.

Dyfyniad MLA

FREER, J R. COMPUTER COMMUNICATIONS AND NETWORKS. MCGRAW HILL, 1990.

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