Air navigation plan.
International Civil Aviation Organization.
Montreal : International Civil Aviation Organization,
1954-
For holdings see manual shelf list.
Current eds. -- Africa, Indian Ocean region (Doc. 7474) -- European region (Doc. 7754) -- Middle East region (Doc.9708) -- Caribbean  and South American regions (Doc. 8733) -- North Atlantic region (Doc. 9634) -- Asia and Pacific regions (Doc. 9673)