National summary of state water quality standards :
definitions /
prepared for United States Environmental Protection Agency ; prepared by Nalesnik Associates Incorporated.

APA Citation

Nalesnik Associates., United States. Environmental Protection Agency. Office of Water Regulations and Standards. Criteria & Standards Division. (1988). National summary of state water quality standards: definitions. Washington, D.C.: U.S. Environmental Protection Agency .

MLA Citation

Nalesnik Associates, and United States. Environmental Protection Agency. Office of Water Regulations and Standards. Criteria & Standards Division. National Summary of State Water Quality Standards: Definitions. Washington, D.C.: U.S. Environmental Protection Agency , 1988.