| APA | Smart Define. (2013). be up to one's neck in thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/be_up_to_one%27s_neck_in/thesaurus/synonyms |
| Chicago | Smart Define. 2013. "be up to one's neck in thesaurus" https://smartdefine.org/be_up_to_one%27s_neck_in/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2013, be up to one's neck in thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/be_up_to_one%27s_neck_in/thesaurus/synonyms>. |
| MLA | Smart Define. "be up to one's neck in thesaurus" 18 May 2013. Web. 29 September 2026. <https://smartdefine.org/be_up_to_one%27s_neck_in/thesaurus/synonyms> |