Engelkren, J.V. Power Station Filter Guide / J.V.Engelkren Tr. by P. Saraccendram and K. Krsnakumar - Trivandram : State Institue Of Language, 1973 - 344 p. : ill ; 18 cm. ISBN: Rs. 8.50 Subjects--Topical Terms: Electrical engineeringElectricity Dewey Class. No.: 621.3