| APA | Smart Define. (2011). South American bullfrog thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/south_american_bullfrog/thesaurus/synonyms |
| Chicago | Smart Define. 2011. "South American bullfrog thesaurus" https://smartdefine.org/south_american_bullfrog/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2011, South American bullfrog thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/south_american_bullfrog/thesaurus/synonyms>. |
| MLA | Smart Define. "South American bullfrog thesaurus" 26 April 2011. Web. 23 September 2026. <https://smartdefine.org/south_american_bullfrog/thesaurus/synonyms> |