| APA | Smart Define. (-0001). Oil and Gas Industry thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/oil_and_gas_industry/thesaurus/narrower |
| Chicago | Smart Define. -0001. "Oil and Gas Industry thesaurus" https://smartdefine.org/oil_and_gas_industry/thesaurus/narrower (accessed October 1, 2026). |
| Harvard | Smart Define -0001, Oil and Gas Industry thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/oil_and_gas_industry/thesaurus/narrower>. |
| MLA | Smart Define. "Oil and Gas Industry thesaurus" 30 November -0001. Web. 1 October 2026. <https://smartdefine.org/oil_and_gas_industry/thesaurus/narrower> |