White, M. (2009). Complete national parks of the United States: Featuring 400+ parks, monuments, battlefields, historic sites, scenic trails, recreation areas, and seashores. National Geographic.
Lua i Stíl Chicago (17ú heag.)White, Mel. Complete National Parks of the United States: Featuring 400+ Parks, Monuments, Battlefields, Historic Sites, Scenic Trails, Recreation Areas, and Seashores. Washington, D.C: National Geographic, 2009.
Lua MLA (9ú heag.)White, Mel. Complete National Parks of the United States: Featuring 400+ Parks, Monuments, Battlefields, Historic Sites, Scenic Trails, Recreation Areas, and Seashores. National Geographic, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.