Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.