Balfour, A. C., Bao, S., Benson, S., & Ward, G. (2016). Western USA (Third edition.). Lonely Planet.
Lua i Stíl Chicago (17ú heag.)Balfour, Amy C., Sandra Bao, Sara Benson, agus Greg Ward. Western USA. Third edition. Carlton, Victoria, Australia: Lonely Planet, 2016.
Lua MLA (9ú heag.)Balfour, Amy C., et al. Western USA. Third edition. Lonely Planet, 2016.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.