Information, Washington, D.C., Environmental Protection Agency; W. Stanley Blackburn, "Review of EPA's Significant Deterioration Regulations: An Example of the Difficulties of the Agency--Court Partnership in Environmental Law," , 61; "Issues and Impacts Associated with Proposed Prevention of Significant Deterioration and Non-Attainment Amendments to the Clean Air Act," ICF Inc., Washington, D.C., Environmental Protection Agency.

Information, Washington, D.C., Environmental Protection Agency; W. Stanley Blackburn, "Review of EPA's Significant Deterioration Regulations: An Example of the Difficulties of the Agency--Court Partnership in Environmental Law," , 61; "Issues and Impacts Associated with Proposed Prevention of Significant Deterioration and Non-Attainment Amendments to the Clean Air Act," ICF Inc., Washington, D.C., Environmental Protection Agency.