Environmental trends and issues during the 1970s
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| Main Author: | |
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| Format: | article biblioteca |
| Language: | eng fre |
| Published: |
UNESCO Regional Office for Science and Technology for Africa
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| Subjects: | Human environment, Environmental sciences, Natural environment, Atmosphere, Water, Oceans, Terrestrial environment, Human settlements, Health, Environmental education, |
| Online Access: | https://unesdoc.unesco.org/ark:/48223/pf0000052201 |
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