Narlikar Jayant. A Journey Through The Universe. National Book Trust.
Cita Chicago (17th ed.)Narlikar Jayant. A Journey Through The Universe. 1986 1986: National Book Trust.
Cita MLA (9th ed.)Narlikar Jayant. A Journey Through The Universe. National Book Trust.
Atenció: Aquestes cites poden no estar 100% correctes.