Spurgeon, D. (2007). Sharp rise in sales of untaxed cigarettes in Canada threatens public health. BMJ Publishing Group Ltd.
Παραπομπή Chicago StyleSpurgeon, David. Sharp Rise in Sales of Untaxed Cigarettes in Canada Threatens Public Health. BMJ Publishing Group Ltd, 2007.
Παραπομπή MLASpurgeon, David. Sharp Rise in Sales of Untaxed Cigarettes in Canada Threatens Public Health. BMJ Publishing Group Ltd, 2007.
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