APA (7th ed.) Citation

Bird, M., Hill, K., Robertson, I., Ball, M., Pittaway, J., & Williams, A. (2013). Serum [25(OH)D] status, ankle strength and activity show seasonal variation in older adults: Relevance for winter falls in higher latitudes. Oxford University Press.

Chicago Style (17th ed.) Citation

Bird, Marie-Louise, Keith Hill, Iain Robertson, Madeleine Ball, Jane Pittaway, and Andrew Williams. Serum [25(OH)D] Status, Ankle Strength and Activity Show Seasonal Variation in Older Adults: Relevance for Winter Falls in Higher Latitudes. Oxford University Press, 2013.

MLA (9th ed.) Citation

Bird, Marie-Louise, et al. Serum [25(OH)D] Status, Ankle Strength and Activity Show Seasonal Variation in Older Adults: Relevance for Winter Falls in Higher Latitudes. Oxford University Press, 2013.