Fei, Q. (2015). Energy, innovation and economic growth: A study of countries by development and export-dependency levels.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Fei, Qin. Energy, Innovation and Economic Growth: A Study of Countries by Development and Export-dependency Levels. 2015.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Fei, Qin. Energy, Innovation and Economic Growth: A Study of Countries by Development and Export-dependency Levels. 2015.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.