| APA | Smart Define. (2011). os frontale thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/os_frontale/thesaurus/broader |
| Chicago | Smart Define. 2011. "os frontale thesaurus" https://smartdefine.org/os_frontale/thesaurus/broader (accessed September 21, 2026). |
| Harvard | Smart Define 2011, os frontale thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/os_frontale/thesaurus/broader>. |
| MLA | Smart Define. "os frontale thesaurus" 26 April 2011. Web. 21 September 2026. <https://smartdefine.org/os_frontale/thesaurus/broader> |