1
by Maddock, R. J. (Robin J.)
Published 1982
Subjects: ...Electric circuits -- Alternating current...
2
by Kubala, Thomas S.
Published 1986
Subjects: ...Electric circuits -- Alternating current....
3
by Hughes, Fredrick W., 1936-
Published 1990
Subjects: ...Electric circuits -- Alternating current -- Programmed instruction....