8 1 10 Tabellenbuch Fernsprechverkehrstheorie Teil 1 Siemens Aktiengesellschaft Primary Author mixed material 3800913437/38009116 Berlin Siemens Aktiengesellschaft 1970 John L. Fike Primary Author George E. Friend Additional Author mixed material 0672270188 Dallas Texas Instruments 1984 The Evolution of Personal Communications Wally H.W. Tuttlebee Primary Author mixed material 0387196331 London Springer-Verlag 1990 Succesful Service Creation and Launch Christoffer Anderson Primary Author Daniel Freeman Additional Author Ian James Additional Author Andy Johnston Additional Author Staffan Ljung Additional Author mixed material 9780470017470 Chichester John Wiley & Sons 2006 John C. Bellamy Primary Author mixed material 0471345717 New York John Wiley & Sons 2000 Analog and Digital Network Design Roger L. Freeman Primary Author mixed material 0471029556 New York John Wiley & Sons 1980 David Talley Primary Author mixed material 0810456877 Rochelle Park Hayden Book 1979 Nripendra N. Biswas Primary Author mixed material 818527309X India Radiant Books 1970