Environmental education : an approach to sustainable development L' education environnementale : approches pour un developpment durable
| Άλλοι συγγραφείς: | |
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| Μορφή: | Βιβλίο |
| Γλώσσα: | English French |
| Έκδοση: |
Paris
Organisarion For Economic Co-operation and Development
c1993.
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| Θέματα: |