| 其他書名 | Hearings Before the United States Joint Economic Committee, Subcommittee on Economic Progress, Ninetieth Congress, First Session. Related materials |
| 出版 | U.S. Government Printing Office, 1967 |
| URL | http://books.google.com.hk/books?id=JO4pzQEACAAJ&hl=&source=gbs_api |