Bratton, M. (2011). The complete guide to the Herschel objects: Sir William Herschel's star clusters, nebulae, and galaxies. Cambridge University Press. https://doi.org/10.1017/CBO9780511667589
Chicago Style (17th ed.) CitationBratton, Mark. The Complete Guide to the Herschel Objects: Sir William Herschel's Star Clusters, Nebulae, and Galaxies. Cambridge: Cambridge University Press, 2011. https://doi.org/10.1017/CBO9780511667589.
MLA (9th ed.) CitationBratton, Mark. The Complete Guide to the Herschel Objects: Sir William Herschel's Star Clusters, Nebulae, and Galaxies. Cambridge University Press, 2011. https://doi.org/10.1017/CBO9780511667589.
Warning: These citations may not always be 100% accurate.