APA (7th ed.) Citation

Bird, M., Hill, K. D., Robertson, I., Ball, M. J., Pittaway, J. K., & Williams, A. D. The Association between Seasonal Variation in Vitamin D, Postural Sway, and Falls Risk: An Observational Cohort Study. Wiley.

Chicago Style (17th ed.) Citation

Bird, Marie-Louise, Keith D. Hill, Iain Robertson, Madeleine J. Ball, Jane K. Pittaway, and Andrew D. Williams. The Association Between Seasonal Variation in Vitamin D, Postural Sway, and Falls Risk: An Observational Cohort Study. Wiley.

MLA (9th ed.) Citation

Bird, Marie-Louise, et al. The Association Between Seasonal Variation in Vitamin D, Postural Sway, and Falls Risk: An Observational Cohort Study. Wiley.