Freebody, J. W. Telegraphy / J. W. Freebody. - London : Isaac Pitman, c 1965. - xii, 738 p. : ill. ; 26 cm. Includes index. Bibliography : p. 720-721. 334 334 Subjects--Topical Terms: Telegraphy. Dewey Class. No.: 621.382 / F875t