Illinois. General Assembly. Legislative Reference Bureau, Verlie, E. J., & Billman, E. (1918). Constitutional conventions in Illinois. Legislative Reference Bureau.
Chicago-viite (17. p.)Illinois. General Assembly. Legislative Reference Bureau, Emil Joseph Verlie, ja Elliot Billman. Constitutional Conventions in Illinois. Springfield, Illinois: Legislative Reference Bureau, 1918.
MLA-viite (8. p.)Illinois. General Assembly. Legislative Reference Bureau, et al. Constitutional Conventions in Illinois. Legislative Reference Bureau, 1918.
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