Telecommunications switching principles
Hills, M.T
Telecommunications switching principles - London George Allen & Unwin 1979 - xiii+327 - Telecommunication systems design Vol. <2=two> .
621.39 / HIL.79
Telecommunications switching principles - London George Allen & Unwin 1979 - xiii+327 - Telecommunication systems design Vol. <2=two> .
621.39 / HIL.79