Não informado. (2004). Helicopter and vto world. Air Age Publications.
Chicagoスタイル(17版)引用形式Não informado. Helicopter and Vto World. London: Air Age Publications, 2004.
MLA(8版)引用形式Não informado. Helicopter and Vto World. Air Age Publications, 2004.
警告: この引用は必ずしも正確ではありません.