| APA | Smart Define. (1970). study of methods of matter separation thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/study_of_methods_of_matter_separation/thesaurus/narrower |
| Chicago | Smart Define. 1970. "study of methods of matter separation thesaurus" https://smartdefine.org/study_of_methods_of_matter_separation/thesaurus/narrower (accessed September 21, 2026). |
| Harvard | Smart Define 1970, study of methods of matter separation thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/study_of_methods_of_matter_separation/thesaurus/narrower>. |
| MLA | Smart Define. "study of methods of matter separation thesaurus" 1 January 1970. Web. 21 September 2026. <https://smartdefine.org/study_of_methods_of_matter_separation/thesaurus/narrower> |