Proceedings: [third session of] Conference in the Matter of Pollution of the Interstate Waters of the Potomac River (Washington metropolitan area) District of Columbia, Maryland, Virginia., by Washington Conference in the Matter of Pollution of the Interstate Waters of the Potomac River and its Tributaries. 3d session et al.

Title:	Proceedings: [third session of] Conference in the Matter of Pollution of the Interstate Waters of the Potomac River (Washington metropolitan area) District of Columbia, Maryland, Virginia.
Author:	Conference in the Matter of Pollution of the Interstate Waters of the Potomac River and its Tributaries. 3d session, Washington, D. C., 1969
Author:	United States. Federal Water Pollution Control Administration
Note:	U. S. Dept. of the Interior, Federal Water Pollution Control Administration, 1969

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Subject:	United States -- Potomac River Watershed
Subject:	Water -- Pollution
Subject:	Water -- Pollution -- Potomac River watershed
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