Proceedings; second session, September 20-21, 1967.

[Washington, D.C.] : U.S. Federal Water Pollution Control Administration, 1968

Proceedings : Conference in the Matter of Pollution of the Interstate Waters of the Hudson River and its Tributaries--New York-New Jersey : third session, New York, New York, June...

[Place of publication not identified] : U.S. Dept. of the Interior, Federal Water Pollution Control Administration, 1970