Simmons, B., Lintott, C., Schawinski, K., Moran, E., Han, A., Kaviraj, S., . . . Nichol, R. (2012). Galaxy Zoo: Bulgeless Galaxies With Growing Black Holes.
Cita Chicago (17th ed.)Simmons, B., et al. Galaxy Zoo: Bulgeless Galaxies With Growing Black Holes. 2012.
Cita MLA (9th ed.)Simmons, B., et al. Galaxy Zoo: Bulgeless Galaxies With Growing Black Holes. 2012.
Atenció: Aquestes cites poden no estar 100% correctes.