| 其他書名 | Metropolitan Birmingham Intrastate Air Quality Control Region |
| 出版 | Federal Facilities Branch, Division of Abatement, Air Pollution Control Office, 1971 |
| URL | http://books.google.com.hk/books?id=Bq7XwzNDh54C&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |