Korzi. Presidential Term Limits in American History. Texas A&M University Press.
Lua i Stíl Chicago (17ú heag.)Korzi. Presidential Term Limits in American History. Texas A&M University Press.
Lua MLA (9ú heag.)Korzi. Presidential Term Limits in American History. Texas A&M University Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.