| 000 | 00382nam a2200133Ia 4500 | ||
|---|---|---|---|
| 008 | 140224s9999 xx 000 0 und d | ||
| 082 | _aPH 631.617.001.6 L7 | ||
| 245 | _aDevelopment of arid and semi-arid lands; obstacles and prospects. | ||
| 260 |
_aParis _bUNESCO _c1977 |
||
| 300 | _a42p. | ||
| 490 | _aMAB Technical Notes; 6 | ||
| 650 | _aArid and Semi-arid lands | ||
| 942 | _cBK | ||
| 999 |
_c92538 _d92538 |
||