Não informado. (1990). ICAO Journal. International Civil Aviation Organization.
Chicagoスタイル(17版)引用形式Não informado. ICAO Journal. Montreal, Canada: International Civil Aviation Organization, 1990.
MLA(8版)引用形式Não informado. ICAO Journal. International Civil Aviation Organization, 1990.
警告: この引用は必ずしも正確ではありません.