Bryce, J. B. (1920). The American commonwealth. Macmillan.
Lua i Stíl Chicago (17ú heag.)Bryce, James Bryce. The American Commonwealth. New York: Macmillan, 1920.
Lua MLA (8ú heag.)Bryce, James Bryce. The American Commonwealth. Macmillan, 1920.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.