| APA | Smart Define. (1970). descent and flexion of the fetal head thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/descent_and_flexion_of_the_fetal_head/thesaurus/broader |
| Chicago | Smart Define. 1970. "descent and flexion of the fetal head thesaurus" https://smartdefine.org/descent_and_flexion_of_the_fetal_head/thesaurus/broader (accessed September 29, 2026). |
| Harvard | Smart Define 1970, descent and flexion of the fetal head thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/descent_and_flexion_of_the_fetal_head/thesaurus/broader>. |
| MLA | Smart Define. "descent and flexion of the fetal head thesaurus" 1 January 1970. Web. 29 September 2026. <https://smartdefine.org/descent_and_flexion_of_the_fetal_head/thesaurus/broader> |