Chaisson, E. (1998). Astronomy: A beginner's guide to the universe (2nd ed.). Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Chaisson, Eric. Astronomy: A Beginner's Guide to the Universe. 2nd ed. New Jersey: Prentice Hall, 1998.
Lua MLA (9ú heag.)Chaisson, Eric. Astronomy: A Beginner's Guide to the Universe. 2nd ed. Prentice Hall, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.