APA引文

Henry, J. A., Oldfield, W. L. G., & Kon, O. M. (2003). Comparing cannabis with tobacco: Smoking cannabis, like smoking tobacco, can be a major public health hazard. BMJ Publishing Group Ltd.

Citação norma Chicago

Henry, John A., William L G. Oldfield, and Onn Min Kon. Comparing Cannabis With Tobacco: Smoking Cannabis, Like Smoking Tobacco, Can Be a Major Public Health Hazard. BMJ Publishing Group Ltd, 2003.

MLA引文

Henry, John A., William L G. Oldfield, and Onn Min Kon. Comparing Cannabis With Tobacco: Smoking Cannabis, Like Smoking Tobacco, Can Be a Major Public Health Hazard. BMJ Publishing Group Ltd, 2003.