Cita APA (7th ed.)
Bratton, M. (2011). The complete guide to the Herschel objects: Sir William Herschel's star clusters, nebulae, and galaxies. Cambridge University Press.
Cita Chicago (17th ed.)
Bratton, Mark. The Complete Guide to the Herschel Objects: Sir William Herschel's Star Clusters, Nebulae, and Galaxies. Cambridge ; New York: Cambridge University Press, 2011.
Cita MLA (9th ed.)
Bratton, Mark. The Complete Guide to the Herschel Objects: Sir William Herschel's Star Clusters, Nebulae, and Galaxies. Cambridge University Press, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.