Sparke, L. S., & Gallagher, J. S. (2013). Galaxies in the universe: An introduction (2. ed., 7. reimpr.). Cambridge: Cambridge University Press.
Chicago Style CitationSparke, Linda Siobhan, and John Sill Gallagher. Galaxies in the Universe: An Introduction. 2. ed., 7. reimpr. Cambridge: Cambridge University Press, 2013.
MLA CitationSparke, Linda Siobhan, and John Sill Gallagher. Galaxies in the Universe: An Introduction. 2. ed., 7. reimpr. Cambridge: Cambridge University Press, 2013.
Warning: These citations may not always be 100% accurate.