| APA | Smart Define. (2011). population decrease thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/population_decrease/thesaurus/synonyms |
| Chicago | Smart Define. 2011. "population decrease thesaurus" https://smartdefine.org/population_decrease/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2011, population decrease thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/population_decrease/thesaurus/synonyms>. |
| MLA | Smart Define. "population decrease thesaurus" 24 May 2011. Web. 24 September 2026. <https://smartdefine.org/population_decrease/thesaurus/synonyms> |