Proceedings
Subtitle: third session (reconvened), Washington, D.C., May 21-22, 1970.
Contributors: United States. Federal Water Quality Administration.
Publisher: U.S. Federal Water Quality Administration
Published: 1970
Place of publication: [Washington]
Language: eng
Number of pages: 390
Subjects: Water -- Pollution -- Potomac River watershed -- Congresses.
Notes: Cover title.