 |
| |||
| Управление по борьбе с загрязнением окружающей среды (США) | |||
| pollution control agency: 7 phrases in 4 subjects |
| Ecology | 2 |
| Medical | 1 |
| Natural resourses and wildlife conservation | 3 |
| Water supply | 1 |
|
| |||
| Управление по борьбе с загрязнением окружающей среды (США) | |||
| pollution control agency: 7 phrases in 4 subjects |
| Ecology | 2 |
| Medical | 1 |
| Natural resourses and wildlife conservation | 3 |
| Water supply | 1 |