A step in the right direction
Subtitle: the national pollutant discharge elimination system
By: Joyce L. Humble.
Series: Problem series - Huxley College of Environmental Studies, Western Washington University; Problem series (Huxley College of Environmental Studies)
Publisher: Huxley College of Environmental Studies, Western Washington University
Published: 1986
Place of publication: Bellingham, Wash
Language: eng
Number of pages: 25
Subjects: Water -- Pollution -- Law and legislation -- United States.; Water quality -- Measurement -- United States.
Other titles: National pollutant discharge elimination system.
Notes: Includes bibliographical references.