Noyes Development Corp.,

Underwater Research Institute,

BNA Books

U.S. Environmental Protection Agency, Office of Pollution Prevention and Toxics,

U.S. Environmental Protection Agency, Policy Planning and Evaluation,

For sale by the Supt. of Docs., U.S. Govt. Print. Off.,

Pegasus

Office of Solid Waste, U.S. Environmental Protection Agency ; Risk Reduction Engineering Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,

U.S. Dept. of Energy,

Div. of Applied Science and Technology, Office of Research and Development, federal Water Quality Administration, U.S. Dept. of the Interior, U.S. Govt. Print. Off.,

[Environmental Protection Agency, Research and Monitoring]; for sale by the Supt. of Docs., U.S. Govt. Print. Off.,

Public Health Service, Division of Water Supply and Pollution Control, Basic Data Branch,