APA (7th ed.) Citation

Key, T., Fraser, G., Thorogood, M., Appleby, P., Beral, V., Reeves, G., . . . McPherson, K. (1998). Mortality in vegetarians and non-vegetarians: A collaborative analysis of 8300 deaths among 76,000 men and women in five prospective studies.

Chicago Style (17th ed.) Citation

Key, T., et al. Mortality in Vegetarians and Non-vegetarians: A Collaborative Analysis of 8300 Deaths Among 76,000 Men and Women in Five Prospective Studies. 1998.

MLA (9th ed.) Citation

Key, T., et al. Mortality in Vegetarians and Non-vegetarians: A Collaborative Analysis of 8300 Deaths Among 76,000 Men and Women in Five Prospective Studies. 1998.