Citazione Stile APA (7a Edizione)

Johnson, S. A. (2017). Why did ancient civilizations fail? Routledge, Taylor & Francis Group.

Citazione stile Chigago Style (17a edizione)

Johnson, Scott A.J. Why Did Ancient Civilizations Fail? New York: Routledge, Taylor & Francis Group, 2017.

Citatione MLA (9a ed.)

Johnson, Scott A.J. Why Did Ancient Civilizations Fail? Routledge, Taylor & Francis Group, 2017.