Pasachoff, J. M. The cosmos: Astronomy in the new millennium (2nd ed.). Thomson Learning Academic Resource Center.
Lua i Stíl Chicago (17ú heag.)Pasachoff, Jay M. The Cosmos: Astronomy in the New Millennium. 2nd ed. Australia: Thomson Learning Academic Resource Center.
Lua MLA (9ú heag.)Pasachoff, Jay M. The Cosmos: Astronomy in the New Millennium. 2nd ed. Thomson Learning Academic Resource Center.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.