TY - BOOK ED - Joint Apprenticeship and Training Committee TI - DC theory SN - 9781418072810 U1 - Circ. 621.31912 D598 2008 PY - 2008/// CY - N. Y. : PB - Delmar Cengage Learning, KW - 1. Electric circuits-Direct current. KW - 2. Electric currents N1 - Includes index ER -