International standards and recommended practices
Subtitle: Aeronautical charts. Annex 4 to the convention on international civil aviation
Edition: 3d ed. incorporating amendments 1 to 29, effective date, 1 December 1952.
Publisher: International civil aviation organization
Published: 1952
Place of publication: Montreal
Language: eng
Number of pages: 27
Other titles: Aeronautical charts.
Notes: Cover-title.

"Chart symbols": 27 numb. l.

Kept up to date by supplements.