| APA | Smart Define. (1970). paper-and-pencil puzzle thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/paper-and-pencil_puzzle/thesaurus/related |
| Chicago | Smart Define. 1970. "paper-and-pencil puzzle thesaurus" https://smartdefine.org/paper-and-pencil_puzzle/thesaurus/related (accessed October 1, 2026). |
| Harvard | Smart Define 1970, paper-and-pencil puzzle thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/paper-and-pencil_puzzle/thesaurus/related>. |
| MLA | Smart Define. "paper-and-pencil puzzle thesaurus" 1 January 1970. Web. 1 October 2026. <https://smartdefine.org/paper-and-pencil_puzzle/thesaurus/related> |