| APA | Smart Define. (2013). late at night thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/late_at_night/thesaurus/synonyms |
| Chicago | Smart Define. 2013. "late at night thesaurus" https://smartdefine.org/late_at_night/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2013, late at night thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/late_at_night/thesaurus/synonyms>. |
| MLA | Smart Define. "late at night thesaurus" 18 May 2013. Web. 21 September 2026. <https://smartdefine.org/late_at_night/thesaurus/synonyms> |