Chaisson, E. (1993). Astronomy today. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Chaisson, Eric. Astronomy Today. New Jersey: Prentice Hall, 1993.
Lua MLA (9ú heag.)Chaisson, Eric. Astronomy Today. Prentice Hall, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.