| 其他書名 | White and Negro Youths 12-17 Years, United States |
| 出版 | U.S. Department of Health, Education, and Welfare, Public Health Service, Health Resources Administration, National Center for Health Statistics, 1973 |
| URL | http://books.google.com.hk/books?id=hbPk_G0HZdUC&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |