APA-ийн эшлэл(7 дахь хэвлэлт)

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

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

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

MLA -ийн эшлэл (9 дэх хэвлэлт)

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