Cita APA (7a ed.)

Davies, K., Kingston, A., Robinson, L., Hughes, J., Hunt, J. M., Barker, S. A. H., . . . Kirkwood, T. B. L. (2014). Improving retention of very old participants in longitudinal research: Experiences from the Newcastle 85+ study. Public Library of Science (PLoS).

Cita Chicago Style (17a ed.)

Davies, Karen, et al. Improving Retention of Very Old Participants in Longitudinal Research: Experiences from the Newcastle 85+ Study. Public Library of Science (PLoS), 2014.

Cita MLA (8a ed.)

Davies, Karen, et al. Improving Retention of Very Old Participants in Longitudinal Research: Experiences from the Newcastle 85+ Study. Public Library of Science (PLoS), 2014.