Congressional Quarterly, Inc. (1971). Guide to the Congress of the United States; origins, history and procedure. Congressional Quarterly Service.
Lua i Stíl Chicago (17ú heag.)Congressional Quarterly, Inc. Guide to the Congress of the United States; Origins, History and Procedure. Washington: Congressional Quarterly Service, 1971.
Lua MLA (9ú heag.)Congressional Quarterly, Inc. Guide to the Congress of the United States; Origins, History and Procedure. Congressional Quarterly Service, 1971.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.