Standards and problems connected with the issuance of employment certificates : proceedings of conference held under the auspices of the United States Children's Bureau and the National Education Associaation at Boston, Massachusetts, July 5-6, 1922

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書誌事項

タイトル: "Standards and problems connected with the issuance of employment certificates : proceedings of conference held under the auspices of the United States Children's Bureau and the National Education Associaation at Boston, Massachusetts, July 5-6, 1922"

出版者

出版年月

At head of title: U.S. Department of Labor, Children's Bureau

Standards and problems conected with the issuance of employment certification Association of the United States