Ryan, H. M.
SF6 switchgear - London Peter Peregrinus Ltd. 1989 - viii, 201p. - IEE power engineering series; no. 10 .
0-86341-123-1
SF6 switchgear - London Peter Peregrinus Ltd. 1989 - viii, 201p. - IEE power engineering series; no. 10 .
0-86341-123-1