Pierson, R. H. (1976). Good-bye planet earth. Pacific Press.
Lua i Stíl Chicago (17ú heag.)Pierson, Roberto H. Good-bye Planet Earth. Pacific Press, 1976.
Lua MLA (9ú heag.)Pierson, Roberto H. Good-bye Planet Earth. Pacific Press, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.