Dyfyniad APA

Ehrig, R. J. (1992). Plastics recycling: Products and processes. Hanser Publishers.

Dyfyniad Arddull Chicago

Ehrig, R. J. Plastics Recycling: Products and Processes. Munich: Hanser Publishers, 1992.

Dyfyniad MLA

Ehrig, R. J. Plastics Recycling: Products and Processes. Hanser Publishers, 1992.

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