Bulliet, R. W. (2005). The earth and its people: A global history (3rd ed.). Houghton Mifflin.
Lua i Stíl Chicago (17ú heag.)Bulliet, Richard W. The Earth and Its People: A Global History. 3rd ed. Boston, MA: Houghton Mifflin, 2005.
Lua MLA (9ú heag.)Bulliet, Richard W. The Earth and Its People: A Global History. 3rd ed. Houghton Mifflin, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.