| APA | Smart Define. (2016). serial killer thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/serial_killer/thesaurus/broader |
| Chicago | Smart Define. 2016. "serial killer thesaurus" https://smartdefine.org/serial_killer/thesaurus/broader (accessed September 20, 2026). |
| Harvard | Smart Define 2016, serial killer thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/serial_killer/thesaurus/broader>. |
| MLA | Smart Define. "serial killer thesaurus" 3 April 2016. Web. 20 September 2026. <https://smartdefine.org/serial_killer/thesaurus/broader> |