| 000 | 00400nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 130223s9999 xx 000 0 und d | ||
| 080 | _a631.586(883) | ||
| 245 | _aMechanized annual cropping on low fertility acid soils in the humid tropics : A | ||
| 260 | _aNetherlands | ||
| 260 | _c1990 | ||
| 300 | _a230 p. | ||
| 440 | _aNo. 90-5; Wageningen, Agricult | ||
| 901 | _pS41104 | ||
| 942 |
_cB _2udc |
||
| 999 |
_c127558 _d127558 |
||