APA (7th ed.) Citation

Rowland, S., Scherwitzl, R., Gemzell-Danielsson, K., Bull, J., Lundberg, O., Berglund-Scherwitzl, E., & Trussell, J. Typical use effectiveness of Natural Cycles: Postmarket surveillance study investigating the impact of previous contraceptive choice on the risk of unintended pregnancy. BMJ Publishing Group.

Chicago Style (17th ed.) Citation

Rowland, Simon, Raoul Scherwitzl, Kristina Gemzell-Danielsson, Jonathan Bull, Olof Lundberg, Elina Berglund-Scherwitzl, and James Trussell. Typical Use Effectiveness of Natural Cycles: Postmarket Surveillance Study Investigating the Impact of Previous Contraceptive Choice on the Risk of Unintended Pregnancy. BMJ Publishing Group.

MLA (9th ed.) Citation

Rowland, Simon, et al. Typical Use Effectiveness of Natural Cycles: Postmarket Surveillance Study Investigating the Impact of Previous Contraceptive Choice on the Risk of Unintended Pregnancy. BMJ Publishing Group.