Zimmerman, K., & St Louis, R. (2015). Washington, DC (6th edition.). Lonely Planet Publications Pty Limited.
Lua i Stíl Chicago (17ú heag.)Zimmerman, Karla, agus Regis St Louis. Washington, DC. 6th edition. Footscray, Victoria, Australia: Lonely Planet Publications Pty Limited, 2015.
Lua MLA (9ú heag.)Zimmerman, Karla, agus Regis St Louis. Washington, DC. 6th edition. Lonely Planet Publications Pty Limited, 2015.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.