TY  - BOOK
AU  - Biswas.
TI  - Principles of Telegraphy
SN  - 0000016372
U1  - 62.382 
PY  - 1985///
CY  - New York
PB  - M.P.P
KW  - Principles  Telegraphy
KW  - Telegraphy(621.382)
ER  -