Παραπομπή APA

(1957). Aerodromes, air routes and ground aids division: Report of the sixth session. Montreal: International Civil Aviation Organisation.

Παραπομπή Chicago Style

Aerodromes, Air Routes and Ground Aids Division: Report of the Sixth Session. Montreal: International Civil Aviation Organisation, 1957.

Παραπομπή MLA

Aerodromes, Air Routes and Ground Aids Division: Report of the Sixth Session. Montreal: International Civil Aviation Organisation, 1957.

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