Nickell, J. (2001). Real-life X-files: Investigating the paranormal. University Press of Kentucky.
芝加哥风格引文Nickell, Joe. Real-life X-files: Investigating the Paranormal. Lexington, Ky.: University Press of Kentucky, 2001.
MLA引文Nickell, Joe. Real-life X-files: Investigating the Paranormal. University Press of Kentucky, 2001.
警告：这些引文格式不一定是100％准确.