Cita APA (7a ed.)
Z, L., J, G., H, W., RJ, B., S, L., A, C., . . . Wang, Y. (2003). Folic acid supplements during early pregnancy and likelihood of multiple births: A population-based cohort study. Lancet, 361(9355), 380-385.
Cita Chicago Style (17a ed.)
Z, Li, et al. "Folic Acid Supplements During Early Pregnancy and Likelihood of Multiple Births: A Population-based Cohort Study." Lancet 361, no. 9355 (2003): 380-385.
Cita MLA (9a ed.)
Z, Li, et al. "Folic Acid Supplements During Early Pregnancy and Likelihood of Multiple Births: A Population-based Cohort Study." Lancet, vol. 361, no. 9355, 2003, pp. 380-385.
Precaución: Estas citas no son 100% exactas.