| APA | Smart Define. (1970). aging theories based on group selection thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/aging_theories_based_on_group_selection/thesaurus/broader |
| Chicago | Smart Define. 1970. "aging theories based on group selection thesaurus" https://smartdefine.org/aging_theories_based_on_group_selection/thesaurus/broader (accessed September 28, 2026). |
| Harvard | Smart Define 1970, aging theories based on group selection thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/aging_theories_based_on_group_selection/thesaurus/broader>. |
| MLA | Smart Define. "aging theories based on group selection thesaurus" 1 January 1970. Web. 28 September 2026. <https://smartdefine.org/aging_theories_based_on_group_selection/thesaurus/broader> |