Kaiser, H. H. (2008). The National Park architecture sourcebook. Princeton Architectural Press.
Lua i Stíl Chicago (17ú heag.)Kaiser, Harvey H. The National Park Architecture Sourcebook. New York: Princeton Architectural Press, 2008.
Lua MLA (9ú heag.)Kaiser, Harvey H. The National Park Architecture Sourcebook. Princeton Architectural Press, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.