Reference: IAN4
Status:
STD 2005/06/07
Reference text:
International Civil Aviation Organization
(ICAO).
Convention on International Civil Aviation, Annex 4: Aeronautical Charts
. 11th ed. Montreal: ICAO, 2009. Incorporates all amendments adopted by the Council prior to 5 March 2009. Document AN4.
Normative:
No
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