| APA | Smart Define. (1970). they have been active thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/they_have_been_active/thesaurus/broader |
| Chicago | Smart Define. 1970. "they have been active thesaurus" https://smartdefine.org/they_have_been_active/thesaurus/broader (accessed September 26, 2026). |
| Harvard | Smart Define 1970, they have been active thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/they_have_been_active/thesaurus/broader>. |
| MLA | Smart Define. "they have been active thesaurus" 1 January 1970. Web. 26 September 2026. <https://smartdefine.org/they_have_been_active/thesaurus/broader> |