Sidney, S. (2003). Comparing cannabis with tobacco—again: Link between cannabis and mortality is still not established. BMJ Publishing Group Ltd.
Citação norma ChicagoSidney, Stephen. Comparing Cannabis With Tobacco—again: Link between Cannabis and Mortality Is Still Not Established. BMJ Publishing Group Ltd, 2003.
Citação norma MLASidney, Stephen. Comparing Cannabis With Tobacco—again: Link between Cannabis and Mortality Is Still Not Established. BMJ Publishing Group Ltd, 2003.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.