APA (7th ed.) Citation

Beck, S., Wojdyla, D., Say, L., Pilar Bertran, A., Meraldi, M., Harris Requejo, J., . . . Van Look, P. (2010). The worldwide incidence of preterm birth: A systematic review of maternal mortality and morbidity. Bulletin of the World Health Organization, 88(1), 31-38. https://doi.org/10.2471/BLT.08.062554

Chicago Style (17th ed.) Citation

Beck, Stacey, Daniel Wojdyla, Lale Say, Ana Pilar Bertran, Mario Meraldi, Jennifer Harris Requejo, Craig Rubens, Ramkumar Menon, and Paul Van Look. "The Worldwide Incidence of Preterm Birth: A Systematic Review of Maternal Mortality and Morbidity." Bulletin of the World Health Organization 88, no. 1 (2010): 31-38. https://doi.org/10.2471/BLT.08.062554.

MLA (9th ed.) Citation

Beck, Stacey, et al. "The Worldwide Incidence of Preterm Birth: A Systematic Review of Maternal Mortality and Morbidity." Bulletin of the World Health Organization, vol. 88, no. 1, 2010, pp. 31-38, https://doi.org/10.2471/BLT.08.062554.