Aryal, U., Petzold, M., & Krettek, A. (2016). Perceived Risks and Benefits of Cigarette Smoking among Nepalese Adolescents: A Population-Based Cross-Sectional Study.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Aryal, UR, M. Petzold, و A. Krettek. Perceived Risks and Benefits of Cigarette Smoking Among Nepalese Adolescents: A Population-Based Cross-Sectional Study. 2016.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Aryal, UR, et al. Perceived Risks and Benefits of Cigarette Smoking Among Nepalese Adolescents: A Population-Based Cross-Sectional Study. 2016.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.