| APA | Smart Define. (1970). america and the crisis of the global environment thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/america_and_the_crisis_of_the_global_environment/thesaurus/broader |
| Chicago | Smart Define. 1970. "america and the crisis of the global environment thesaurus" https://smartdefine.org/america_and_the_crisis_of_the_global_environment/thesaurus/broader (accessed October 1, 2026). |
| Harvard | Smart Define 1970, america and the crisis of the global environment thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/america_and_the_crisis_of_the_global_environment/thesaurus/broader>. |
| MLA | Smart Define. "america and the crisis of the global environment thesaurus" 1 January 1970. Web. 1 October 2026. <https://smartdefine.org/america_and_the_crisis_of_the_global_environment/thesaurus/broader> |