Agenda 21
| on
| Environment and Development
| Agenda 21 | |
| gen. | Agenda 21 |
| on | |
| earth.sc. el. | ingeschakeld |
| environment and development | |
| gen. | milieu en ontwikkeling |
| |||
| Agenda 21 | |||
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Agenda 21 : 2 phrases in 2 subjects |
| Economics | 1 |
| Environment | 1 |