| APA | Smart Define. (-0001). normal spiral galaxy thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/normal_spiral_galaxy/thesaurus/broader |
| Chicago | Smart Define. -0001. "normal spiral galaxy thesaurus" https://smartdefine.org/normal_spiral_galaxy/thesaurus/broader (accessed September 22, 2026). |
| Harvard | Smart Define -0001, normal spiral galaxy thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/normal_spiral_galaxy/thesaurus/broader>. |
| MLA | Smart Define. "normal spiral galaxy thesaurus" 30 November -0001. Web. 22 September 2026. <https://smartdefine.org/normal_spiral_galaxy/thesaurus/broader> |