Cita APA (7a ed.)

Nurk, E., Refsum, H., Drevon, C., Tell, G., Nygaard, H., Engedal, K., & Smith, A. (2010). Cognitive performance among the elderly in relation to the intake of plant foods. The Hordaland Health Study.

Cita Chicago Style (17a ed.)

Nurk, E., H. Refsum, C. Drevon, G. Tell, H. Nygaard, K. Engedal, y A. Smith. Cognitive Performance Among the Elderly in Relation to the Intake of Plant Foods. The Hordaland Health Study. 2010.

Cita MLA (9a ed.)

Nurk, E., et al. Cognitive Performance Among the Elderly in Relation to the Intake of Plant Foods. The Hordaland Health Study. 2010.