APA (7th ed.) Citation

Hayden, K. M., Reed, B. R., Manly, J. J., Tommet, D., Pietrzak, R. H., Chelune, G. J., . . . Jones, R. N. (2011). Cognitive decline in the elderly: An analysis of population heterogeneity. Age and ageing, 40(6), 684-689. https://doi.org/10.1093/ageing/afr101

Chicago Style (17th ed.) Citation

Hayden, Kathleen M., et al. "Cognitive Decline in the Elderly: An Analysis of Population Heterogeneity." Age and Ageing 40, no. 6 (2011): 684-689. https://doi.org/10.1093/ageing/afr101.

MLA (9th ed.) Citation

Hayden, Kathleen M., et al. "Cognitive Decline in the Elderly: An Analysis of Population Heterogeneity." Age and Ageing, vol. 40, no. 6, 2011, pp. 684-689, https://doi.org/10.1093/ageing/afr101.