| APA | Smart Define. (1970). letter of thanks thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/letter_of_thanks/thesaurus/related |
| Chicago | Smart Define. 1970. "letter of thanks thesaurus" https://smartdefine.org/letter_of_thanks/thesaurus/related (accessed October 1, 2026). |
| Harvard | Smart Define 1970, letter of thanks thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/letter_of_thanks/thesaurus/related>. |
| MLA | Smart Define. "letter of thanks thesaurus" 1 January 1970. Web. 1 October 2026. <https://smartdefine.org/letter_of_thanks/thesaurus/related> |