Powell, J. E. (2019). Archivmaterialien zu John Enoch Powell, 1912-1998.
芝加哥风格引文Powell, John Enoch. Archivmaterialien Zu John Enoch Powell, 1912-1998. 2019.
MLA引文Powell, John Enoch. Archivmaterialien Zu John Enoch Powell, 1912-1998. 2019.
警告：这些引文格式不一定是100％准确.
