Transformer engineering : a treatise on the theory, operation, and application of transformers / by L. F. Blume...[et.al] - 2d ed. - New York : Wiley, 1951. - ix, 500 p. : ill. ; 24 cm. Includes bibliographies and index. Subjects--Topical Terms: Electric transformers. Dewey Class. No.: 621.3143 / BLT