| APA | Smart Define. (2011). pygmy sperm whale thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/pygmy_sperm_whale/thesaurus/related |
| Chicago | Smart Define. 2011. "pygmy sperm whale thesaurus" https://smartdefine.org/pygmy_sperm_whale/thesaurus/related (accessed October 1, 2026). |
| Harvard | Smart Define 2011, pygmy sperm whale thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/pygmy_sperm_whale/thesaurus/related>. |
| MLA | Smart Define. "pygmy sperm whale thesaurus" 26 April 2011. Web. 1 October 2026. <https://smartdefine.org/pygmy_sperm_whale/thesaurus/related> |