BERGAMINI, D. (1970). The universe. Time-Life Books.
Lua i Stíl Chicago (17ú heag.)BERGAMINI, David. The Universe. New York: Time-Life Books, 1970.
Lua MLA (9ú heag.)BERGAMINI, David. The Universe. Time-Life Books, 1970.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.