TY - BOOK AU - Freeman,Roger L. TI - Telecommunication system engineering T2 - Wiley series in telecommunications SN - 0471634239 AV - TK5103 F855T 1989 PY - 1989/// CY - New York PB - : Wiley KW - Telecommunication systems KW - Design and construction KW - Telephone systems N1 - "A Wiley-Interscience publication." ER -