| 其他書名 | Hearings Before the United States Joint Economic Committee, Subcommittee on Economic Progress, Ninetieth Congress, First Session, on Apr. 14, 17, 21, 1967 |
| 出版 | U.S. Government Printing Office, 1967 |
| URL | http://books.google.com.hk/books?id=V7xFAQAAMAAJ&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |