Harari, Y. N. (2018). 21 lessons for the 21st century. Jonathan Cape, Radom Huse Uk.
芝加哥风格引文Harari, Yuval N. 21 Lessons for the 21st Century. London: Jonathan Cape, Radom Huse Uk, 2018.
MLA引文Harari, Yuval N. 21 Lessons for the 21st Century. Jonathan Cape, Radom Huse Uk, 2018.
警告：这些引文格式不一定是100％准确.