McKenna, J. A., & Allen, N. (2010). Skycrane: Igor Sikorsky's last vision. American Institute of Aeronautics and Astronautics.
芝加哥风格引文McKenna, John A., 与 Ned Allen. Skycrane: Igor Sikorsky's Last Vision. Reston, Va.: American Institute of Aeronautics and Astronautics, 2010.
MLA引文McKenna, John A., 与 Ned Allen. Skycrane: Igor Sikorsky's Last Vision. American Institute of Aeronautics and Astronautics, 2010.
警告：这些引文格式不一定是100％准确.