ALEXANDER S LANGSDORF, . (1992). THEORY OF ALTERNATING CURRENT MACHINERY. : TATA MC GRAW HILL.
ALEXANDER S LANGSDORF, . 1992. THEORY OF ALTERNATING CURRENT MACHINERY. : TATA MC GRAW HILL.
ALEXANDER S LANGSDORF, . THEORY OF ALTERNATING CURRENT MACHINERY. : TATA MC GRAW HILL. 1992.