Παραπομπή APA

Harari, Y. N. (2018). Twentyone lessons for the twentyfirst century. Jonathan Cape.

Παραπομπή Chicago Style

Harari, Yuval N. Twentyone Lessons for the Twentyfirst Century. London: Jonathan Cape, 2018.

Παραπομπή MLA

Harari, Yuval N. Twentyone Lessons for the Twentyfirst Century. Jonathan Cape, 2018.