| APA | Smart Define. (2016). curved shape thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/curved_shape/thesaurus/narrower |
| Chicago | Smart Define. 2016. "curved shape thesaurus" https://smartdefine.org/curved_shape/thesaurus/narrower (accessed September 23, 2026). |
| Harvard | Smart Define 2016, curved shape thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/curved_shape/thesaurus/narrower>. |
| MLA | Smart Define. "curved shape thesaurus" 12 February 2016. Web. 23 September 2026. <https://smartdefine.org/curved_shape/thesaurus/narrower> |