Citazione Stile APA (7a Edizione)

Ratzel, F., Butler, A. J., & Taylor, E. B. (1896). The history of mankind: Translation from the German. Macmillam.

Citazione stile Chigago Style (17a edizione)

Ratzel, Friedrich, Arthur John Butler, e E. B. Taylor. The History of Mankind: Translation from the German. London: Macmillam, 1896.

Citatione MLA (9a ed.)

Ratzel, Friedrich, et al. The History of Mankind: Translation from the German. Macmillam, 1896.