| APA | Smart Define. (1970). earth-fed thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/earth-fed/thesaurus/synonyms |
| Chicago | Smart Define. 1970. "earth-fed thesaurus" https://smartdefine.org/earth-fed/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 1970, earth-fed thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/earth-fed/thesaurus/synonyms>. |
| MLA | Smart Define. "earth-fed thesaurus" 1 January 1970. Web. 24 September 2026. <https://smartdefine.org/earth-fed/thesaurus/synonyms> |