| 其他書名 | Offered by the U.S. Department of Agriculture in Cooperation with U.S. Universities |
| 出版 | U.S. Department of Agriculture, Office of International Cooperation and Development, 1992 |
| URL | http://books.google.com.hk/books?id=OOjI4dKavRMC&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |