Hollander, S., Sinclair, J., & Urie, B. (1981). Impossible year. Kobalt Music Publishing America, Inc..
Lua i Stíl Chicago (17ú heag.)Hollander, Sam, Jacob Sinclair, agus Brendon Urie. Impossible Year. New York, United States: Kobalt Music Publishing America, Inc., 1981.
Lua MLA (9ú heag.)Hollander, Sam, et al. Impossible Year. Kobalt Music Publishing America, Inc., 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.