Tedder, R., Knowles, B., & Bogart, K. (2009). Halo. Hal Leonard Music Publishing.
Lua i Stíl Chicago (17ú heag.)Tedder, Ryan, Beyonce Knowles, agus Kidd Bogart. Halo. Wisconsin, United States: Hal Leonard Music Publishing, 2009.
Lua MLA (9ú heag.)Tedder, Ryan, et al. Halo. Hal Leonard Music Publishing, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.