TY  - BOOK
AU  - H RISSIK
TI  - MERCURY -ARC CURRENT CONVERTORS
U1  - TR 621.324 R 49 
PY  - 1963///
CY  - LONDON
PB  - SIR ISAACPITMAN & SONS LTD.
KW  - MERCURY -ARC CURRENT CONVERTORS
N1  - MODERN BOOK HOUSE
ER  -