Hasinger. Astronomy's Limitless Journey. University of Hawai'i Press.
Cita Chicago (17th ed.)Hasinger. Astronomy's Limitless Journey. University of Hawai'i Press.
Cita MLA (8th ed.)Hasinger. Astronomy's Limitless Journey. University of Hawai'i Press.
Atenció: Aquestes cites poden no estar 100% correctes.