| APA | Smart Define. (-0001). east european plain thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/east_european_plain/thesaurus/broader |
| Chicago | Smart Define. -0001. "east european plain thesaurus" https://smartdefine.org/east_european_plain/thesaurus/broader (accessed September 30, 2026). |
| Harvard | Smart Define -0001, east european plain thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/east_european_plain/thesaurus/broader>. |
| MLA | Smart Define. "east european plain thesaurus" 30 November -0001. Web. 30 September 2026. <https://smartdefine.org/east_european_plain/thesaurus/broader> |