Michaelowa, A., & Koch, T. (1999). Critical Issues in Current Climate Policy: "Hot air", multi-level emission trading registries and changes in emission commitments due to international conflicts.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Michaelowa, Axel, و Tobias Koch. Critical Issues in Current Climate Policy: "Hot Air", Multi-level Emission Trading Registries and Changes in Emission Commitments Due to International Conflicts. Hamburg, 1999.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Michaelowa, Axel, و Tobias Koch. Critical Issues in Current Climate Policy: "Hot Air", Multi-level Emission Trading Registries and Changes in Emission Commitments Due to International Conflicts. 1999.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.