Held, Gilbert
Understanding data communications / revised by Gilbert Held, with contributions by Gerald Lueke and Charles W. Battle. - 5th edition - Indianapolis : SAMS Pub, c1996. - xv, 504 p.: ill;
First edition by., George E. friend...=et al.=
data transmission systems
Understanding data communications / revised by Gilbert Held, with contributions by Gerald Lueke and Charles W. Battle. - 5th edition - Indianapolis : SAMS Pub, c1996. - xv, 504 p.: ill;
First edition by., George E. friend...=et al.=
data transmission systems