Ludwig, C., Hellweg, S., Stucki, S., Ludwig, C., & Hellweg, S. (2003). Municipal solid waste management: Strategies and technologies for sustainable solutions. Berlin New York: Springer.
Παραπομπή Chicago StyleLudwig, Christian, Stefanie Hellweg, Samuel Stucki, Christian Ludwig, and Stefanie Hellweg. Municipal Solid Waste Management: Strategies and Technologies for Sustainable Solutions. Berlin New York: Springer, 2003.
Παραπομπή MLALudwig, Christian, et al. Municipal Solid Waste Management: Strategies and Technologies for Sustainable Solutions. Berlin New York: Springer, 2003.
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