| 000 | 00334nam a2200121Ia 4500 | ||
|---|---|---|---|
| 008 | 170101s1977 xx 000 0 und d | ||
| 082 | _a631.42 UNI | ||
| 100 | _aUnited Nations Food and Agriculture Organizaitons | ||
| 245 | 0 | _aSoil Fertility Investigations on Farmers' Fields | |
| 260 | _c1977 | ||
| 300 | _a78 p. | ||
| 942 |
_2ddc _cB |
||
| 999 |
_c752966 _d752966 |
||