Ehrig, R. (1992). Plastics recycling: : products and processes. Hanser.
Chicago Edition CitationEhrig, R.J. Plastics Recycling: : Products and Processes. Munich: Hanser, 1992.
MLA引文Ehrig, R.J. Plastics Recycling: : Products and Processes. Hanser, 1992.
警告:這些引文格式不一定是100%准確.