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Lua i Stíl Chicago (17ú heag.)Narlikar, Jayant Vishnu. An Introduction to Cosmology. 3a. ed. Cambridge: University of Cambridge, 2002.
Lua MLA (9ú heag.)Narlikar, Jayant Vishnu. An Introduction to Cosmology. 3a. ed. University of Cambridge, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.