00349nam a2200157Ia 4500 8117 Ost 20260507155033.0 251113s9999||||xx |||||||||||||| ||eng|| nitttr eng 621.3 H874E Hughes, Edward Electrical technology. / Hughes, Edward BK 8011 8011 0 0 0 0 NITTTR NITTTR 2026-05-07 0 621.3 H874E 9312 2026-05-07 15:50:33 2026-05-07 BK