Brailsford, F. Physical principles of magnetism [by] F. Brailsford. - London : New York [etc.] ; Van Nostrand , [1966] - x, 274 p. : ill. ; 24 cm. With answers to problems. Includes bibliographical references and index. Subjects--Topical Terms: Ferromagnetism. Dewey Class. No.: 538 / BRP