TY - BOOK AU - Clayton,Albert Edmund AU - Hancock,N.N. TI - The performance and design of direct current machines SN - 9788123909271 AV - TK2612 .C6 1959 U1 - 621.3132 23 PY - 1959///] CY - London PB - Pitman KW - Electric machinery KW - Direct current ER -