Cita APA (7th ed.)

Harari, Y. N. (2018). 21 lessons for the 21st century. Spiegel and Grau.

Cita Chicago (17th ed.)

Harari, Yuval Noah. 21 Lessons for the 21st Century. New York: Spiegel and Grau, 2018.

Cita MLA (9th ed.)

Harari, Yuval Noah. 21 Lessons for the 21st Century. Spiegel and Grau, 2018.