Gaya APA
Piotrovsky, K, M, L.
(1974).
Electical machines vol 2
(
ed.3)
.
Moscow:
MIR Publishers.
Gaya MLA
Piotrovsky, Kostenko, M, L.
"Electical machines vol 2".
ed.3
Moscow:
MIR Publishers,
1974.
Text.