| APA | Smart Define. (1970). illuminated surface zone thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/illuminated_surface_zone/thesaurus/broader |
| Chicago | Smart Define. 1970. "illuminated surface zone thesaurus" https://smartdefine.org/illuminated_surface_zone/thesaurus/broader (accessed September 26, 2026). |
| Harvard | Smart Define 1970, illuminated surface zone thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/illuminated_surface_zone/thesaurus/broader>. |
| MLA | Smart Define. "illuminated surface zone thesaurus" 1 January 1970. Web. 26 September 2026. <https://smartdefine.org/illuminated_surface_zone/thesaurus/broader> |