[Proceedings]
Subtitle: Wednesday, March 15, 1967.
Contributors: United States. Federal Water Pollution Control Administration.
Publisher: Dept. of the Interior, Federal Water Pollution Control Administration
Published: 1967
Place of publication: [Washington]
Language: eng
Number of pages: 852
Subjects: Water -- Pollution -- Calumet Region -- Congresses.; Sewage disposal -- Calumet Region -- Congresses.; Water quality -- Calumet Region -- Congresses.
Genres: Congresses.
Notes: Cover title.