| APA | Smart Define. (1970). international journal of sustainable development and world ecology thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/international_journal_of_sustainable_development_and_world_ecology/thesaurus/broader |
| Chicago | Smart Define. 1970. "international journal of sustainable development and world ecology thesaurus" https://smartdefine.org/international_journal_of_sustainable_development_and_world_ecology/thesaurus/broader (accessed October 1, 2026). |
| Harvard | Smart Define 1970, international journal of sustainable development and world ecology thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/international_journal_of_sustainable_development_and_world_ecology/thesaurus/broader>. |
| MLA | Smart Define. "international journal of sustainable development and world ecology thesaurus" 1 January 1970. Web. 1 October 2026. <https://smartdefine.org/international_journal_of_sustainable_development_and_world_ecology/thesaurus/broader> |