| 其他書名 | Statement Presented by Robert E. Post at the 35th Annual Agricultural Outlook Conference, Washington, D.C., November 20, 1957 |
| 出版 | U.S. Department of Agriculture, Agricultural Marketing Service, 1957 |
| URL | http://books.google.com.hk/books?id=7MW4YgEACAAJ&hl=&source=gbs_api |