Bulliet, R. W. (2008). The Earth and its peoples: A global history (4th ed.). Houghton Mifflin.
Citazione stile Chigago Style (17a edizione)Bulliet, Richard W. The Earth and Its Peoples: A Global History. 4th ed. Boston: Houghton Mifflin, 2008.
Citatione MLA (9a ed.)Bulliet, Richard W. The Earth and Its Peoples: A Global History. 4th ed. Houghton Mifflin, 2008.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.