Tohutoro APA (7th ed.)

Wallis, R. (2003). How safe are our skies?: Assessing the airlines' response to terrorism. Praeger.

Tohutoru Kātū Chicago (17th ed.)

Wallis, Rodney. How Safe Are Our Skies?: Assessing the Airlines' Response to Terrorism. Westport, Conn.: Praeger, 2003.

Tohutoro MLA (9th ed.)

Wallis, Rodney. How Safe Are Our Skies?: Assessing the Airlines' Response to Terrorism. Praeger, 2003.