| |||
| recensement de la population | |||
|
population survey : 7 phrases in 4 subjects |
| Aviation | 1 |
| Natural resourses and wildlife conservation | 1 |
| Social science | 1 |
| Statistics | 4 |
| |||
| recensement de la population | |||
|
population survey : 7 phrases in 4 subjects |
| Aviation | 1 |
| Natural resourses and wildlife conservation | 1 |
| Social science | 1 |
| Statistics | 4 |