ГОСТ:
Yavorskaya S. D. et al. The problem of constipation during puerperia: modern possibilities of its resolution //Russian Bulletin of Obstetrician-Gynecologist. — 2021. — T.21. —№. 2 —C. 82-82

MLA:
Yavorskaya, S. D., et al. "The problem of constipation during puerperia: modern possibilities of its resolution" Russian Bulletin of Obstetrician-Gynecologist 21.2 (2021): 82-82