APA ציטוט

Ensrud, K. E., Blackwell, T. L., Cauley, J. A., Cummings, S. R., Barrett-Connor, E., Dam, T. L., . . . Cawthon, P. M. (2010). Circulating 25-hydroxyvitamin D Levels and Frailty Status in Older Men: The Osteoporotic Fractures in Men Study.

Citação norma Chicago

Ensrud, Kristine E., et al. Circulating 25-hydroxyvitamin D Levels and Frailty Status in Older Men: The Osteoporotic Fractures in Men Study. 2010.

ציטוט MLA

Ensrud, Kristine E., et al. Circulating 25-hydroxyvitamin D Levels and Frailty Status in Older Men: The Osteoporotic Fractures in Men Study. 2010.