APA-viite

Robbins, R., Sonnega, A., Turner, R. W., Jean-Louis, G., Butler, M., Osorio, R. S., & Langa, K. M. (2020). Sleep Difficulties and Cognition for 10 Years in a National Sample of U.S. Older Adults. Innov Aging.

Chicago-tyylinen lähdeviittaus

Robbins, Rebecca, Amanda Sonnega, Robert W. Turner, Girardin Jean-Louis, Mark Butler, Ricardo S. Osorio, ja Kenneth M. Langa. "Sleep Difficulties and Cognition for 10 Years in a National Sample of U.S. Older Adults." Innov Aging 2020.

MLA-viite

Robbins, Rebecca, et al. "Sleep Difficulties and Cognition for 10 Years in a National Sample of U.S. Older Adults." Innov Aging 2020.

Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.