APA-referens (7:e uppl.)

Harari, Y. N. (2019). 21 lessons for the 21st century. Vintage.

Chicago-referens (17:e uppl.)

Harari, Yuval N. 21 Lessons for the 21st Century. London: Vintage, 2019.

MLA-referens (9:e uppl.)

Harari, Yuval N. 21 Lessons for the 21st Century. Vintage, 2019.