| 其他書名 | (University of Illinois at Urbana-Champaign. Cooperative Extension Service in Agriculture and Home Economics) |
| 出版 | Cooperative Extension Service, College of Agriculture, University of Illinois at Urbana-Champaign., 1966 |
| URL | http://books.google.com.hk/books?id=6qGqzgEACAAJ&hl=&source=gbs_api |