APA (7th ed.) Zitazioa

Narlikar, J. V. [. (1999). Seven wonders of the cosmos. Univ. Pr..

Chicago Style (17th ed.) Zitazioa

Narlikar, Jayant V. [Vishnu]. Seven Wonders of the Cosmos. Cambridge: Univ. Pr., 1999.

MLA (9th ed.) Zitazioa

Narlikar, Jayant V. [Vishnu]. Seven Wonders of the Cosmos. Univ. Pr., 1999.