APA (7e ed.) Bronvermelding

Key, T., Fraser, G., Thorogood, M., Appleby, P., Beral, V., Reeves, G., . . . McPherson, K. (1999). Mortality in vegetarians and nonvegetarians: Detailed findings from a collaborative analysis of 5 prospective studies.

Chicago (17e ed.) Bronvermelding

Key, T., et al. Mortality in Vegetarians and Nonvegetarians: Detailed Findings from a Collaborative Analysis of 5 Prospective Studies. 1999.

MLA (9e ed.) Bronvermelding

Key, T., et al. Mortality in Vegetarians and Nonvegetarians: Detailed Findings from a Collaborative Analysis of 5 Prospective Studies. 1999.