Say, M. G. The performance and design of alternating current machines: transformers, three-phase induction motors and synchronous machines - 3rd ed. - London Pitman 1961 - xxi, 664 p. ISBN: 0273423924 Subjects--Topical Terms: Electric TransformersElectric machinery--Alternating current Dewey Class. No.: 621.3133 / S2741