| APA | Smart Define. (-0001). pervasive developmental disorders thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/pervasive_developmental_disorders/thesaurus/related |
| Chicago | Smart Define. -0001. "pervasive developmental disorders thesaurus" https://smartdefine.org/pervasive_developmental_disorders/thesaurus/related (accessed September 25, 2026). |
| Harvard | Smart Define -0001, pervasive developmental disorders thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/pervasive_developmental_disorders/thesaurus/related>. |
| MLA | Smart Define. "pervasive developmental disorders thesaurus" 30 November -0001. Web. 25 September 2026. <https://smartdefine.org/pervasive_developmental_disorders/thesaurus/related> |