APA citiranje

Barker, D. J., & Godfrey, K. M. (1984). Geographical variations in the incidence of colorectal cancer in Britain. Nature Publishing Group.

Citação norma Chicago

Barker, D. J., and K. M. Godfrey. Geographical Variations in the Incidence of Colorectal Cancer in Britain. Nature Publishing Group, 1984.

MLA citiranje

Barker, D. J., and K. M. Godfrey. Geographical Variations in the Incidence of Colorectal Cancer in Britain. Nature Publishing Group, 1984.