Blume, Louis Frederick, 1882-1946. Transformer engineering : a treatise on the theory, operation, an d application of transformers / by L.F. Blume [and others] - 2nd ed. - New York : Wiley, 1951. - ix, 500 p. : ill. ; 24 cm. - General Electric series . Includes bibliographical references Subjects--Topical Terms: Electric transformers. Dewey Class. No.: 621.3143