TY  - BOOK
AU  - Halsey, S.P.
AU  - 
TI  - reference book for electrical and telecommunications technicians
U1  - 621.39 
PY  - 1968///
CY  - London
PB  - Oxford University
KW  - Electrical engineering
KW  - Telecommunications
N1  -  Bibliog. p. 167
ER  -