Wahlström, M., Hjelmar, O., Oberender, A., Wik, O., & Laine-Ylijoki, J. (2016). Hazardous waste classification: Amendments to the European Waste Classification regulation - what do they mean and what are the consequences? Nordic Council of Ministers.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Wahlström, Margareta, Ole Hjelmar, Anke Oberender, Ola Wik, و Jutta Laine-Ylijoki. Hazardous Waste Classification: Amendments to the European Waste Classification Regulation - What Do They Mean and What Are the Consequences? Copenhagen K: Nordic Council of Ministers, 2016.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Wahlström, Margareta, et al. Hazardous Waste Classification: Amendments to the European Waste Classification Regulation - What Do They Mean and What Are the Consequences? Nordic Council of Ministers, 2016.