Sondheim, S. (1988). Giants in the Sky. Hal Leonard Music Publishing.
Lua i Stíl Chicago (17ú heag.)Sondheim, Stephen. Giants in the Sky. Wisconsin, United States: Hal Leonard Music Publishing, 1988.
Lua MLA (9ú heag.)Sondheim, Stephen. Giants in the Sky. Hal Leonard Music Publishing, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.