| Type |  Book |
| ชื่อเรื่อง | Multiple cropping in the Chiang Mai valley : the complex reletionships between components in mltiple cropping systems / by Iain A. Craig .. [et al.] |
| พิมพลักษณ์ | Chiang Mai : Multiple Cropping Projcet, Faculty of Agriculture Chiang Mai University, 1980 |
| รูปเล่ม | 15, [5] leaves ; 27 cm |
| หัวเรื่อง | Cropping systems |
| | Multiple cropping --Thailand --Chiang Mai [] |