Johns, A. T. & Salman, S. K. Digital Protection For Power Systems - 1st Ed. - New Delhi Shankars Book Agency 2012 - 203p. 24 cm. Text in English ISBN: 9789381893012 Subjects--Facted Index Terms: ELEC Index Terms--Genre/Form: D-17 Dewey Class. No.: 621.317 / JOH