| 其他書名 | Proceedings of a Symposium Held During the Annual Meetings of the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America in Las Vegas, Nevada, November 1973. 1973-76 |
| 出版 | American Society of Agronomy, 1963 |
| ISBN | 08911803979780891180395 |
| URL | http://books.google.com.hk/books?id=whPA0AEACAAJ&hl=&source=gbs_api |