| APA | Smart Define. (-0001). tunnel construction thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/tunnel_construction/thesaurus/related |
| Chicago | Smart Define. -0001. "tunnel construction thesaurus" https://smartdefine.org/tunnel_construction/thesaurus/related (accessed September 27, 2026). |
| Harvard | Smart Define -0001, tunnel construction thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/tunnel_construction/thesaurus/related>. |
| MLA | Smart Define. "tunnel construction thesaurus" 30 November -0001. Web. 27 September 2026. <https://smartdefine.org/tunnel_construction/thesaurus/related> |