World Health Organization & World Health Organization. Health Effects of Interactions between Tobacco Use and Exposure to other Agents.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)World Health Organization و World Health Organization. Health Effects of Interactions Between Tobacco Use and Exposure to Other Agents.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)World Health Organization و World Health Organization. Health Effects of Interactions Between Tobacco Use and Exposure to Other Agents.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.