| APA | Smart Define. (1970). happy surprise for youngsters thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/happy_surprise_for_youngsters/thesaurus/broader |
| Chicago | Smart Define. 1970. "happy surprise for youngsters thesaurus" https://smartdefine.org/happy_surprise_for_youngsters/thesaurus/broader (accessed September 27, 2026). |
| Harvard | Smart Define 1970, happy surprise for youngsters thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/happy_surprise_for_youngsters/thesaurus/broader>. |
| MLA | Smart Define. "happy surprise for youngsters thesaurus" 1 January 1970. Web. 27 September 2026. <https://smartdefine.org/happy_surprise_for_youngsters/thesaurus/broader> |