Παραπομπή APA

(1973). Airports for the 80s: Proceedings of the fourth World Airports Conference, 3-5 April 1973. London: Institution of Civil Engineers.

Παραπομπή Chicago Style

Airports for the 80s: Proceedings of the Fourth World Airports Conference, 3-5 April 1973. London: Institution of Civil Engineers, 1973.

Παραπομπή MLA

Airports for the 80s: Proceedings of the Fourth World Airports Conference, 3-5 April 1973. London: Institution of Civil Engineers, 1973.

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