Pugh , Emerson M. . Principle of Electricity & Magnetism / Textual Documents Emerson M. Pugh & E.M. Pugh. - 1st ed. / - London : Addison- Wesley , C 1960. - xi, 430p. : ill. ; 23cm . ISBN: PB Subjects--Index Terms: Electricity Magnetism Physics PG-Physics Dewey Class. No.: 537 / P 963 P