| Type |  Book |
| ชื่อเรื่อง | Conservation farming in the United States [electronic resource] : the methods of accomplishments of the STEEP program / edited by Edgar L. Michalson, Robert I. Papendick and John E. Carlson |
| ISBN | 9780367802028 (ebook) |
| | 9780849311857 |
| พิมพลักษณ์ | Boca Raton, FL : CRC Press, c1999 |
| รูปเล่ม | 244 p. : ill |
| ลิงค์ | Taylor & Francis eBooks |
| หัวเรื่อง | Agricultural conservation --Northwest, Pacific [] |
| | Conservation tillage --Northwest, Pacific [] |
| | Soil conservation --Northwest, Pacific [] |