Harrison, J. B. (1971). A short history of western civilization (3rd ed.). Alfred A. Knopf.
Lua i Stíl Chicago (17ú heag.)Harrison, John B. A Short History of Western Civilization. 3rd ed. New York: Alfred A. Knopf, 1971.
Lua MLA (9ú heag.)Harrison, John B. A Short History of Western Civilization. 3rd ed. Alfred A. Knopf, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.