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Authors
- Illinois State Water Survey, author.1
- Illinois, author.1
- Illinois, enacting jurisdiction.11
- Illinois. Board of State Commissioners of Public Charities.3
- Illinois. Circuit Court (Cook County) enacting jurisdiction.1
- Illinois. Commission for Handicapped Children, author.5
- Illinois. Commission on the Care of Chronically Ill Persons, author.1
- Illinois. Committee to Investigate Chronic Diseases among Indigents, author.1
- Illinois. Department of Public Health, author, issuing body.1
- Illinois. Department of Public Health, author.2
- Illinois. Department of Public Health. Division of Industrial Hygiene, author.1
- Illinois. Department of Public Health. Statistical Office, author.1
- Illinois. Department of Public Welfare, author.1
- Illinois. Division of Communicable Diseases, compiler.1
- Illinois. Division of Sanitary Engineering. Stream Pollution and Sewage Section, author.1
- Illinois. General Assembly. House of Representatives, author.2
- Illinois. General Assembly. Legislative Council. Research Department, author.1
- Illinois. Joint Committee on School Health author.1
- Illinois. Joint Committee on School Health, author.2
- Illinois. Joint Committee on School Health, compiler.1