| APA | Smart Define. (1970). christmas-tree master valve thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/christmas-tree_master_valve/thesaurus/broader |
| Chicago | Smart Define. 1970. "christmas-tree master valve thesaurus" https://smartdefine.org/christmas-tree_master_valve/thesaurus/broader (accessed September 24, 2026). |
| Harvard | Smart Define 1970, christmas-tree master valve thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/christmas-tree_master_valve/thesaurus/broader>. |
| MLA | Smart Define. "christmas-tree master valve thesaurus" 1 January 1970. Web. 24 September 2026. <https://smartdefine.org/christmas-tree_master_valve/thesaurus/broader> |