Dyfyniad APA

Harari, Y. N. (2015). Sapiens: A brief history of humankind (First U.S. edition.). Harper.

Dyfyniad Arddull Chicago

Harari, Yuval N. Sapiens: A Brief History of Humankind. First U.S. edition. New York: Harper, 2015.

Dyfyniad MLA

Harari, Yuval N. Sapiens: A Brief History of Humankind. First U.S. edition. Harper, 2015.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.