International Energy Agency & Organisation for Economic Co-operation and Development. (2002). Bus systems for the future: Achieving sustainable transport worldwide. OECD/IEA.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)International Energy Agency و Organisation for Economic Co-operation and Development. Bus Systems for the Future: Achieving Sustainable Transport Worldwide. Paris, France: OECD/IEA, 2002.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)International Energy Agency و Organisation for Economic Co-operation and Development. Bus Systems for the Future: Achieving Sustainable Transport Worldwide. OECD/IEA, 2002.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.