TY  - BOOK
AU  - Pierce,John Robinson
AU  - Noll, A. Michael,
TI  - Signals: the science of telecomunications 
SN  - 0716750260
AV  - TK5101 P545
PY  - 1990///
CY  - New York
PB  - Scientific american library
KW  - Telecomunicaciones
ER  -