O'CONNOR v. City of Rockford , 52 Ill. 2d 360 ( 1972 )
Heft v. Zoning Bd. of Appeals , 31 Ill. 2d 266 ( 1964 )
PEO. EX REL. ABNER v. Kinney , 30 Ill. 2d 201 ( 1964 )
Ruby Chevrolet, Inc. v. Dept. of Revenue , 6 Ill. 2d 147 ( 1955 )