Marx és Engels az ökológiáról - Marx and Engels on the Ecology (szerk. Howard L. Parsons) Greenwood Press, Westport-London 1977.
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| source: | Philobibl |
| Format: | Article |
| Language: | Hungarian |
| Main Author: | |
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| source: | Philobibl |
| Format: | Article |
| Language: | Hungarian |