| APA | Smart Define. (2013). hill alto thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/hill_alto/thesaurus/synonyms |
| Chicago | Smart Define. 2013. "hill alto thesaurus" https://smartdefine.org/hill_alto/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2013, hill alto thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/hill_alto/thesaurus/synonyms>. |
| MLA | Smart Define. "hill alto thesaurus" 19 May 2013. Web. 28 September 2026. <https://smartdefine.org/hill_alto/thesaurus/synonyms> |