| 其他書名 | Statement by Robert E. Post, Bureau of Agricultural Economics, at the 27th Annual Agricultural Outlook Conference, Washington, D.C., November 3, 1949 |
| 出版 | U.S. Department of Agriculture, Bureau of Agricultural Economics, 1949 |
| URL | http://books.google.com.hk/books?id=Cbd5uAAACAAJ&hl=&source=gbs_api |