Manual of teletypewriter operating practices
By: prepared in consultation with the ICAO Panel of Teletypewriter Specialists.
Edition: 4th ed.
Publisher: International Civil Aviation Organization
Published: 1967
Place of publication: (Montreal)
Language: eng
Subjects: Teletype.; Teletype in aeronautics.
Notes: "August 1967."

Doc 7946-AN/868/4.