| APA | Smart Define. (1970). diesel engined road vehicle fuel thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/diesel_engined_road_vehicle_fuel/thesaurus/broader |
| Chicago | Smart Define. 1970. "diesel engined road vehicle fuel thesaurus" https://smartdefine.org/diesel_engined_road_vehicle_fuel/thesaurus/broader (accessed October 1, 2026). |
| Harvard | Smart Define 1970, diesel engined road vehicle fuel thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/diesel_engined_road_vehicle_fuel/thesaurus/broader>. |
| MLA | Smart Define. "diesel engined road vehicle fuel thesaurus" 1 January 1970. Web. 1 October 2026. <https://smartdefine.org/diesel_engined_road_vehicle_fuel/thesaurus/broader> |