Say, L., Chou, D., Gemmill, A., Tunçalp, Ö., Moller, A., Daniels, J., . . . Alkema, L. (2014). Global causes of maternal death: A WHO systematic analysis. The Lancet global health, 2(6), e323-e333. https://doi.org/10.1016/S2214-109X(14)70227-X
Citácia podle Chicago (17th ed.)Say, Lale, Doris Chou, Alison Gemmill, Özge Tunçalp, Ann-Beth Moller, Jane Daniels, A Metin Gülmezoglu, Marleen Temmerman, a Leontine Alkema. "Global Causes of Maternal Death: A WHO Systematic Analysis." The Lancet Global Health 2, no. 6 (2014): e323-e333. https://doi.org/10.1016/S2214-109X(14)70227-X.
Citácia podľa MLA (8th ed.)Say, Lale, et al. "Global Causes of Maternal Death: A WHO Systematic Analysis." The Lancet Global Health, vol. 2, no. 6, 2014, pp. e323-e333, https://doi.org/10.1016/S2214-109X(14)70227-X.