Hancock, John C., 1929- An introduction to the principles of communication theory / John C. Hancock - New York : McGraw-Hill, 1961. - x, 253 p.: illus. 24 cm. - McGraw-Hill electrical and electronic engineering series . Includes bibliography. LCCN: 60016727 Subjects--Topical Terms: Telecommunication.Information theory. Dewey Class. No.: 621.38 / GHL 1979