| APA | Smart Define. (1970). he made a fortune from sales of the book thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/he_made_a_fortune_from_sales_of_the_book/thesaurus/broader |
| Chicago | Smart Define. 1970. "he made a fortune from sales of the book thesaurus" https://smartdefine.org/he_made_a_fortune_from_sales_of_the_book/thesaurus/broader (accessed September 30, 2026). |
| Harvard | Smart Define 1970, he made a fortune from sales of the book thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/he_made_a_fortune_from_sales_of_the_book/thesaurus/broader>. |
| MLA | Smart Define. "he made a fortune from sales of the book thesaurus" 1 January 1970. Web. 30 September 2026. <https://smartdefine.org/he_made_a_fortune_from_sales_of_the_book/thesaurus/broader> |