| 其他書名 | Hearings in San Francisco, October 24-25, 1963, on the Subject of Employment of Older Workers, Vocational Training and Youth Opportunities, Effectiveness of State and Federal Legislation, Safety Regulations for Operation of Boilers |
| 出版 | 1963 |
| URL | http://books.google.com.hk/books?id=hFdh0TggOvoC&hl=&source=gbs_api |