Cita APA (7th ed.)

Appleby, P., Key, T., Thorogood, M., Burr, M., & Mann, J. (2002). Mortality in British vegetarians.

Cita Chicago (17th ed.)

Appleby, P., T. Key, M. Thorogood, M. Burr, i J. Mann. Mortality in British Vegetarians. 2002.

Cita MLA (9th ed.)

Appleby, P., et al. Mortality in British Vegetarians. 2002.