Descriptor
| Chemical Industry | 1 |
| Depleted Resources | 1 |
| Ecological Factors | 1 |
| Engineering Education | 1 |
| Natural Resources | 1 |
| Plastics | 1 |
| Recycling | 1 |
| Scientific Research | 1 |
| Wastes | 1 |
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Peer reviewedChemical and Engineering News, 1973
Descriptors: Chemical Industry, Depleted Resources, Ecological Factors, Engineering Education
