TY - BOOK AU - Freeman,Roger L. TI - Telecommunication transmission handbook SN - 0471080292 (hbk.) AV - TK5101 F66 1981 PY - 1981/// CY - New York : PB - Wiley, KW - Telecommunication N1 - "A Wiley-Interscience publication."; Includes bibliographical references and index ER -