This opinion cites 11 cases:

Undercofler v. Eastern Air Lines, Inc. , 221 Ga. 824 ( 1966 )


Fefferman v. Marohn , 408 Ill. 542 ( 1951 )


Modern Dairy Co. v. Department of Revenue , 413 Ill. 55 ( 1952 )


Superior Coal Co. v. Dept. of Revenue , 4 Ill. 2d 459 ( 1954 )


Pressed Steel Car Co. v. Lyons , 7 Ill. 2d 95 ( 1955 )


The Burrows Co. v. Hollingsworth , 415 Ill. 202 ( 1953 )


International Harvester Co. v. Department of Treasury of State of Indiana , 64 S. Ct. 1019 ( 1944 )


Sinclair Refining Co. v. Department of Revenue , 50 Ill. 2d 201 ( 1971 )


Robertson Products Co. v. Nudelman , 389 Ill. 281 ( 1945 )


Eastern Air Transport, Inc. v. South Carolina Tax Commission , 52 S. Ct. 340 ( 1932 )


State Tax Commission v. Pacific States Cast Iron Pipe Co. , 83 S. Ct. 925 ( 1963 )