Bull, P., & Kamionkowski, M. (2013). What if Planck's Universe isn't flat?
Cita Chicago (17th ed.)Bull, P., i M. Kamionkowski. What If Planck's Universe Isn't Flat? 2013.
Cita MLA (9th ed.)Bull, P., i M. Kamionkowski. What If Planck's Universe Isn't Flat? 2013.
Atenció: Aquestes cites poden no estar 100% correctes.