Harnwell, Gaylord Probasco, 8 1903- ). Principles of electricity and electromagnetism. - 2d ed. - New York, McGraw-Hill Book Co., 1949. - xvi, 670 p. diagrs. 24 cm. - International series in pure and applied physics . LCCN: 49008683 Subjects--Topical Terms: ELECTRICIDADELECTROMAGNETISMO Dewey Class. No.: 537