Harari, Y. N. (2018). 21 lessons for the 21st century (First edition.). Spiegel & Grau.
Chicago (17e ed.) BronvermeldingHarari, Yuval N. 21 Lessons for the 21st Century. First edition. New York: Spiegel & Grau, 2018.
MLA (9e ed.) BronvermeldingHarari, Yuval N. 21 Lessons for the 21st Century. First edition. Spiegel & Grau, 2018.
Let op: Deze citaties zijn niet altijd 100% accuraat.