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Authors
- Texas, enacting jurisdiction.2
- United States. Navy Department. Bureau of Medicine and Surgery, author.2
- Alabama. Department of Education, author.1
- Alabama. State Department of Health, author.1
- Brown, Robert M., (Chemical engineer), author1
- California Highway Patrol, author.1
- Clark, Philip W., author1
- Conference on Inter-American Relations in the Field of Education (1939 : Washington, D.C.) author.1
- Crittenden, C. B., author1
- Deutsch, Albert, 1905-1961, author1
- Illinois State Water Survey, author.1
- Illinois. Department of Public Health. Division of Industrial Hygiene, author.1
- Illinois. Division of Sanitary Engineering. Stream Pollution and Sewage Section, author.1
- Indiana, enacting jurisdiction.1
- Indiana. Bureau of Industrial Hygiene, author.1
- International Congress of Military Medicine and Pharmacy 1939 : Washington, D.C.) author.1
- International Congress of Military Medicine and Pharmacy 1939 : Washington, D.C.). Organizing Committee author.1
- Iowa. State Department of Health. Advisory Committee on Pneumonia Control, author.1
- Iowa. State Planning Board. Committee on Health, author, issuing body.1
- Kendrick, John F. (John Fox), 1890- author1