| 其他書名 | A Study of the Prevalence and Treatment of Child Dependency and Delinquency in Thirty Counties with Special Reference to Legal Protection Needed |
| 出版 | U.S. Department of Labor, Children's Bureau, 1926 |
| URL | http://books.google.com.hk/books?id=lxUWiliqqU0C&hl=&source=gbs_api |