Procedures for air navigation services
Subtitle: rules of the air and air traffic services
Edition: 12th ed.
Publisher: ICAO
Published: 1996
Place of publication: Montreal, Quebec
Language: eng
Notes: "Doc 4444-RAC/501."

"This edition incorporates all amendments approved by the Council prior to 27 June 1984 and supersedes, on 21 November 1985, all previous editions of Doc 4444-RAC/501."