| APA | Smart Define. (-0001). National Vaccine Program Office thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/national_vaccine_program_office/thesaurus/broader |
| Chicago | Smart Define. -0001. "National Vaccine Program Office thesaurus" https://smartdefine.org/national_vaccine_program_office/thesaurus/broader (accessed September 26, 2026). |
| Harvard | Smart Define -0001, National Vaccine Program Office thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/national_vaccine_program_office/thesaurus/broader>. |
| MLA | Smart Define. "National Vaccine Program Office thesaurus" 30 November -0001. Web. 26 September 2026. <https://smartdefine.org/national_vaccine_program_office/thesaurus/broader> |