Cita APA

Roberts, C. L., Algert, C. S., Ford, J. B., Todd, A. L., & Morris, J. M. (2012). Pathways to a rising caesarean section rate: A population-based cohort study. BMJ Group.

Chicago Style Citation

Roberts, Christine L., Charles S. Algert, Jane B. Ford, Angela L. Todd, i Jonathan M. Morris. Pathways to a Rising Caesarean Section Rate: A Population-based Cohort Study. BMJ Group, 2012.

Cita MLA

Roberts, Christine L., et al. Pathways to a Rising Caesarean Section Rate: A Population-based Cohort Study. BMJ Group, 2012.