| 000 | 00623nam a2200205 a 4500 | ||
|---|---|---|---|
| 005 | 20210219160117.0 | ||
| 008 | 080804s1977 mx r 000 0 spa d | ||
| 020 | _a923201484X | ||
| 035 | _aUPN01000158899 | ||
| 049 | _aUNE | ||
| 080 | _a338 (252) =40 DEV No.6. | ||
| 245 | 0 | 0 |
_aDéveloppement des régions arides et semi-arides : _bobstacles et perspectives. |
| 260 |
_aParís : _bUNESCO, _c1977 |
||
| 300 | _a46 p. | ||
| 440 | 0 |
_aMAB technical notes ; _v6 |
|
| 690 | _aDesarrollo induastrial - Zonas aridas | ||
| 690 | _aTransferencia de tecnología - Desarrollo agricola | ||
| 710 | 2 | _aUNESCO | |
| 905 | _aUNESCO | ||
| 999 |
_c131013 _d131013 |
||