APA (7th ed.) Zitazioa

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

Chicago Style (17th ed.) Zitazioa

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

MLA (9th ed.) Zitazioa

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

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