APA citiranje

Lawson, D. E., Paul, A. A., Black, A. E., Cole, T. J., Mandal, A. R., & Davie, M. (1979). Relative contributions of diet and sunlight to vitamin D state in the elderly.

Citação norma Chicago

Lawson, D E., A A. Paul, A E. Black, T J. Cole, A R. Mandal, and M. Davie. Relative Contributions of Diet and Sunlight to Vitamin D State in the Elderly. 1979.

MLA citiranje

Lawson, D E., et al. Relative Contributions of Diet and Sunlight to Vitamin D State in the Elderly. 1979.