TY - BOOK AU - Freeman,Roger L. TI - Telecommunication system engineering SN - 9788126525133 U1 - 621.382 FRE 23 PY - 2004/// [Reprinted 2014] CY - New Delhi PB - Wiley KW - Telecommunication systems KW - Design and construction KW - Telephone systems N1 - Includes bibliographical references and index ER -