| APA | Smart Define. (-0001). blood urea nitrogen thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/blood_urea_nitrogen/thesaurus/related |
| Chicago | Smart Define. -0001. "blood urea nitrogen thesaurus" https://smartdefine.org/blood_urea_nitrogen/thesaurus/related (accessed October 1, 2026). |
| Harvard | Smart Define -0001, blood urea nitrogen thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/blood_urea_nitrogen/thesaurus/related>. |
| MLA | Smart Define. "blood urea nitrogen thesaurus" 30 November -0001. Web. 1 October 2026. <https://smartdefine.org/blood_urea_nitrogen/thesaurus/related> |