Citação norma APA

Tiihonen, J., Ronkainen, K., Kangasharju, A., & Kauhanen, J. (2012). The net effect of smoking on healthcare and welfare costs. A cohort study. BMJ Publishing Group.

Citação norma Chicago

Tiihonen, Jari, Kimmo Ronkainen, Aki Kangasharju, and Jussi Kauhanen. The Net Effect of Smoking On Healthcare and Welfare Costs. A Cohort Study. BMJ Publishing Group, 2012.

Citação norma MLA

Tiihonen, Jari, Kimmo Ronkainen, Aki Kangasharju, and Jussi Kauhanen. The Net Effect of Smoking On Healthcare and Welfare Costs. A Cohort Study. BMJ Publishing Group, 2012.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.