Lua APA (7ú heag.)
Honnold, A., & Roberts, D. Alone on the Wall. Norton.
Lua i Stíl Chicago (17ú heag.)
Honnold, Alex, agus David Roberts. Alone on the Wall. Nueva York, EUA: Norton.
Lua MLA (9ú heag.)
Honnold, Alex, agus David Roberts. Alone on the Wall. Norton.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.