State pension assets investment performance.

"October 1986."

State Records Act and State Records Commission rules.

Mode of access: Internet.

Structure and tectonics of the Rough Creek Graben : Western Kentucky and Southeastern Illinois /

"Prepared for the annual meeting of the Geological Society of America, Cincinnati, Ohio October 26-29, 1992."

Subsidence investigations over a high-extraction retreat mine in Williamson County, Illinois : final report /

"Illinois Mine Subsidence Research Program"

Student achievement in Illinois : an analysis of student progress.

"November 1982."

Student achievement in Illinois : an analysis of student progress.

"February 1984."

Statistics of library service in Illinois.

Includes directory information.

Status and functions of isolated wetlands in Illinois /

"IP733038"--Page 2 of cover.

Student achievement in Illinois : an analysis of student progress in language arts, 1985.

"June, 1986."

Student activities in Illinois high schools

Cover title.

Stratigraphic correlations of the Seelyville, Dekoven, and Davis coals of Illinois, Indiana, and western Kentucky /

Errata slip inserted.

Strategy for the protection of underground water in Illinois /

"October 9, 1984."

Student financial aid in Illinois : report of the Illinois Financial Aid Study Committee.

"February 22, 1988."

Taxonomy of specimens of the Pennsylvanian age Marattialean fern Psaronius from Ohio and Illinois/

Bibliography: p. 61-64.

The appropriate use of climatic information in Illinois natural-gas utility weather-normalization techniques /

"ISWS/RI-112/90"--Cover.