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Authors
- Los Angeles City School District, author, issuing body.1
- National Institute of Health (U.S.). Division of Public Health Methods, author.1
- New York (N.Y.). Commission for Study of Crippled Children, author.1
- New York (State). Legislature. Children's Court Jurisdiction and Juvenile Delinquency Committee, author.1
- United States. National Youth Administration. Division of Finance and Statistics, author.1
- United States. Public Health Service, author.1