Proceedings, Water Quality Planning Seminar, May 10, 1973, New Carrollton, Maryland.
Published: 1973
Place of publication: Bethesda, Md
Language: eng
Number of pages: 32
Subjects: Water quality management -- Potomac River Watershed -- Congresses.; Water -- Pollution -- Potomac River -- Congresses.; Potomac River.
Other titles: Water quality planning.