The air quality and economic implications of supplementary control systems in Illinois /

Bibliography: p. 90-92.

The economic effects of underground mining upon land used for Illinois agriculture /

"February 1985."

The Economic impact of revised measurement methods for emissions of sulfur compounds, proposed regulations R87-31 : final report /

"Project: 88/223."

The economic impact of section 21 (H) of the Environmental Protection Act of the State of Illinois, proposed regulation R80-19 /

Project no.: 80.244.

The economic impact analysis of R84-29 : mine-related water pollution regulations /

"Project 86/7005."

The Economic impact of imposed regulation R81-18 : certification of waste disposal site owners and operators /

"December, 1982."

The Economic impact of proposed regulation R81-19 for site-specific water pollution rules applicable to Citizens Utilities Company discharge to Lily Cache Creek /

Project no. 80.261.

The Economic impact of proposed regulation 79-11 to allow a relaxation of APC rule 203 (g) for particulate matter /

"Project no. 10.088."

The economic impact of proposed amendments to chapter 4, mine-related pollution (R76-20 and R77-10) /

Bibliography: p. 75-78.

The economic structure of the southwestern Illinois region.

[pt.1] Introduction and methodology.--[pt.2] The past and the present.--[pt.3] The future.

The economic impact on Illinois of Wisconsin's rule to reduce SO emissions /

Cover title.

The Economic impact of proposed regulation R82-1 : remanded particulate regulations 203 (g) (1) and 202 (b) /

Project no. EA44.

The Economic impact of proposed regulation R82-2 : atomic radiation regulations /

Project no. 83/7010.

The economic impact of proposed regulation R81-16 : review of major source construction and modification /

"August, 1982."

The economic development resource catalog : loans, grants, and technical assistance available to Illinois communities /

Mode of access: Internet.