Harris, M.R. Lawrenson, P.J. Stephenson, J.M.
Per unit systems with special reference to electrical machines - Cambridge C.U.P. 1970 - 116 p. - IEE monograph series No.4 .
621.313 / H3
Per unit systems with special reference to electrical machines - Cambridge C.U.P. 1970 - 116 p. - IEE monograph series No.4 .
621.313 / H3