"gwyther, h f. "
solving problems in electrical power and power electronics: / h.f. gwyther - 1 ed. - uk : longman 1988. - "vii, 203p.; 25 cm."
0-582-28644-1
electricity supply
solving problems in electrical power and power electronics: / h.f. gwyther - 1 ed. - uk : longman 1988. - "vii, 203p.; 25 cm."
0-582-28644-1
electricity supply