Absenteeism among White and Negro School Children in Cleveland, 1922-23
Autor: | Harmon, G. E. |
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Zdroj: | Public Health Reports (1896-1970), 1924 Mar . 39(12), 559-567. |
Databáze: | JSTOR Journals |
Externí odkaz: |
Autor: | Harmon, G. E. |
---|---|
Zdroj: | Public Health Reports (1896-1970), 1924 Mar . 39(12), 559-567. |
Databáze: | JSTOR Journals |
Externí odkaz: |