Citazione Stile APA (7a Edizione)

Thomas, H. (1979). An unfinished history of the world. H. Hamilton.

Citazione stile Chigago Style (17a edizione)

Thomas, Hugh. An Unfinished History of the World. London: H. Hamilton, 1979.

Citatione MLA (8a ed.)

Thomas, Hugh. An Unfinished History of the World. H. Hamilton, 1979.