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- [35] Is Child Labor a Government or State Question? ANNALS OF THE AMERICAN ACADEMY OF POLITICAL AND SOCIAL SCIENCE, 1927, 129 (218): : 34 - 40
- [37] THE STATE AND THE NATION IN CHILD LABOR REGULATION ANNALS OF THE AMERICAN ACADEMY OF POLITICAL AND SOCIAL SCIENCE, 1911, 38 : 154 - 155