"stallings, william . "
data and computer communications: / william.. stallings - 5 ed. - uk : prentice-hall 1997. - "xviii, 798p.; 23 cm."
0-13-571274-2
computer communication--data communication
005. 71 sta
data and computer communications: / william.. stallings - 5 ed. - uk : prentice-hall 1997. - "xviii, 798p.; 23 cm."
0-13-571274-2
computer communication--data communication
005. 71 sta