| 000 | 00384nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 130223s9999 xx 000 0 und d | ||
| 245 | _aSmaller farmlands can yield more : Raising agricultural productivity by technolo | ||
| 260 | _aRome | ||
| 260 | _bFAO | ||
| 260 | _c1969 | ||
| 300 | _a73 p. | ||
| 440 | _aNo. 8; FAO, World Food Problem | ||
| 901 | _pS19253 | ||
| 942 |
_cB _2udc |
||
| 999 |
_c133478 _d133478 |
||