TY  - BOOK
ED  - Open University (Great Britain). Telecommunication Systems Course Team.
TI  - Telecommunication systems
SN  - 033506101X (2) ; 0335061079 (3 & 4)
PY  - 1976///
CY  - Milton Keynes
PB  - Open University Press
KW  - Telecommunication systems
N1  - Units 3 and 4 are in one volume; Unit 2: Modulation. - - Unit 3: Channels and lines I. - - Unit 4: Channels and lines II
ER  -