APA (7th ed.) Citation

TL, G., AS, K., GA, G., BH, S., & TE, S. (2009). Increased mortality risk in older adults with persistently low or declining feelings of usefulness to others. Journal of Aging & Health, 21(2), 398. https://doi.org/10.1177/0898264308329023

Chicago Style (17th ed.) Citation

TL, Gruenewald, Karlamangla AS, Greendale GA, Singer BH, and Seeman TE. "Increased Mortality Risk in Older Adults with Persistently Low or Declining Feelings of Usefulness to Others." Journal of Aging & Health 21, no. 2 (2009): 398. https://doi.org/10.1177/0898264308329023.

MLA (9th ed.) Citation

TL, Gruenewald, et al. "Increased Mortality Risk in Older Adults with Persistently Low or Declining Feelings of Usefulness to Others." Journal of Aging & Health, vol. 21, no. 2, 2009, p. 398, https://doi.org/10.1177/0898264308329023.