Reference manual for telecommunications engineering / Roger L. Freeman. Freeman, Roger L. Telecommunication systems Design and construction Handbooks, manuals, etc. TK5102.5 .F68 1993 621.3820202 20 FRR "A Wiley-Interscience publication." Includes bibliographical references and index. New York : Wiley, c1994. c1994. 1994 Text xxxi, 2308 p. : eng