APA

(2007). Escwa Study on Air Transport in the Arab World. New York: united nations.

Chicago

2007. Escwa Study on Air Transport in the Arab World. New York: united nations.

Harvard

(2007). Escwa Study on Air Transport in the Arab World. New York: united nations.

MLA

Escwa Study on Air Transport in the Arab World. New York: united nations. 2007.