APA引文

Prescott, E., Osler, M., Hein, H. O., Borch-Johnsen, K., Schnohr, P., & Vestbo, J. (1998). Life expectancy in Danish women and men related to smoking habits: Smoking may affect women more. BMJ Group.

Citação norma Chicago

Prescott, E., M. Osler, H. O. Hein, K. Borch-Johnsen, P. Schnohr, and J. Vestbo. Life Expectancy in Danish Women and Men Related to Smoking Habits: Smoking May Affect Women More. BMJ Group, 1998.

MLA引文

Prescott, E., et al. Life Expectancy in Danish Women and Men Related to Smoking Habits: Smoking May Affect Women More. BMJ Group, 1998.