APA (7th ed.) Citation

E L Khazova, N Yu Yakovleva, & E N Belyaeva. (2017). Estimation of the influence of exogenous factors on the vitamin D deficiency in pregnant women in Saint Petersburg. IP Berlin A.V..

Chicago Style (17th ed.) Citation

E L Khazova, N Yu Yakovleva, and E N Belyaeva. Estimation of the Influence of Exogenous Factors on the Vitamin D Deficiency in Pregnant Women in Saint Petersburg. IP Berlin A.V., 2017.

MLA (9th ed.) Citation

E L Khazova, et al. Estimation of the Influence of Exogenous Factors on the Vitamin D Deficiency in Pregnant Women in Saint Petersburg. IP Berlin A.V., 2017.

Warning: These citations may not always be 100% accurate.